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Finding the Fourth Proportional to 530,340.16, 731,902.08 and 304,019.68

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Solution

The fourth proportional to 530,340.16, 731,902.08 and 304,019.68 is: 419,565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,340.16 : 731,902.08 = 304,019.68 : x
  2. Step 2: Convert to fraction form
    530,340.16/731,902.08 = 304,019.68/x
  3. Step 3: Cross multiply
    530,340.16x = 731,902.08 × 304,019.68
  4. Step 4: Simplify right side
    530,340.16x = 222,512,636,152.93
  5. Step 5: Solve for x
    x = 222,512,636,152.93/530,340.16
  6. Step 6: Final answer
    x = 419,565.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.