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Finding the Fourth Proportional to 487,955.70, 731,933.55 and 410,973.30

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Solution

The fourth proportional to 487,955.70, 731,933.55 and 410,973.30 is: 616,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,955.70 : 731,933.55 = 410,973.30 : x
  2. Step 2: Convert to fraction form
    487,955.70/731,933.55 = 410,973.30/x
  3. Step 3: Cross multiply
    487,955.70x = 731,933.55 × 410,973.30
  4. Step 4: Simplify right side
    487,955.70x = 300,805,146,424.22
  5. Step 5: Solve for x
    x = 300,805,146,424.22/487,955.70
  6. Step 6: Final answer
    x = 616,459.95

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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.