Home / 745,220.40-1,117,274.13-239,492.85

Finding the Fourth Proportional to 745,220.40, 1,117,274.13 and 239,492.85

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Solution

The fourth proportional to 745,220.40, 1,117,274.13 and 239,492.85 is: 359,060.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,220.40 : 1,117,274.13 = 239,492.85 : x
  2. Step 2: Convert to fraction form
    745,220.40/1,117,274.13 = 239,492.85/x
  3. Step 3: Cross multiply
    745,220.40x = 1,117,274.13 × 239,492.85
  4. Step 4: Simplify right side
    745,220.40x = 267,579,165,624.97
  5. Step 5: Solve for x
    x = 267,579,165,624.97/745,220.40
  6. Step 6: Final answer
    x = 359,060.44

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.