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Finding the Fourth Proportional to 528,957.03, 729,938.28 and 299,526.86

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Solution

The fourth proportional to 528,957.03, 729,938.28 and 299,526.86 is: 413,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,957.03 : 729,938.28 = 299,526.86 : x
  2. Step 2: Convert to fraction form
    528,957.03/729,938.28 = 299,526.86/x
  3. Step 3: Cross multiply
    528,957.03x = 729,938.28 × 299,526.86
  4. Step 4: Simplify right side
    528,957.03x = 218,636,123,950.27
  5. Step 5: Solve for x
    x = 218,636,123,950.27/528,957.03
  6. Step 6: Final answer
    x = 413,334.37

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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.