Home / 763,302.80-1,144,954.20-448,115.60

Finding the Fourth Proportional to 763,302.80, 1,144,954.20 and 448,115.60

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Solution

The fourth proportional to 763,302.80, 1,144,954.20 and 448,115.60 is: 672,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,302.80 : 1,144,954.20 = 448,115.60 : x
  2. Step 2: Convert to fraction form
    763,302.80/1,144,954.20 = 448,115.60/x
  3. Step 3: Cross multiply
    763,302.80x = 1,144,954.20 × 448,115.60
  4. Step 4: Simplify right side
    763,302.80x = 513,071,838,305.52
  5. Step 5: Solve for x
    x = 513,071,838,305.52/763,302.80
  6. Step 6: Final answer
    x = 672,173.40

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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.