Home / 738,696.40-1,108,081.05-384,402.40

Finding the Fourth Proportional to 738,696.40, 1,108,081.05 and 384,402.40

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Solution

The fourth proportional to 738,696.40, 1,108,081.05 and 384,402.40 is: 576,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,696.40 : 1,108,081.05 = 384,402.40 : x
  2. Step 2: Convert to fraction form
    738,696.40/1,108,081.05 = 384,402.40/x
  3. Step 3: Cross multiply
    738,696.40x = 1,108,081.05 × 384,402.40
  4. Step 4: Simplify right side
    738,696.40x = 425,949,015,014.52
  5. Step 5: Solve for x
    x = 425,949,015,014.52/738,696.40
  6. Step 6: Final answer
    x = 576,622.57

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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.