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Finding the Fourth Proportional to 488,279.70, 732,419.55 and 409,547.70

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Solution

The fourth proportional to 488,279.70, 732,419.55 and 409,547.70 is: 614,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,279.70 : 732,419.55 = 409,547.70 : x
  2. Step 2: Convert to fraction form
    488,279.70/732,419.55 = 409,547.70/x
  3. Step 3: Cross multiply
    488,279.70x = 732,419.55 × 409,547.70
  4. Step 4: Simplify right side
    488,279.70x = 299,960,742,137.54
  5. Step 5: Solve for x
    x = 299,960,742,137.54/488,279.70
  6. Step 6: Final answer
    x = 614,321.55

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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.