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Finding the Fourth Proportional to 515,592.80, 711,772.08 and 324,899.36

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Solution

The fourth proportional to 515,592.80, 711,772.08 and 324,899.36 is: 448,521.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,592.80 : 711,772.08 = 324,899.36 : x
  2. Step 2: Convert to fraction form
    515,592.80/711,772.08 = 324,899.36/x
  3. Step 3: Cross multiply
    515,592.80x = 711,772.08 × 324,899.36
  4. Step 4: Simplify right side
    515,592.80x = 231,254,293,257.87
  5. Step 5: Solve for x
    x = 231,254,293,257.87/515,592.80
  6. Step 6: Final answer
    x = 448,521.18

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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.