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Finding the Fourth Proportional to 529,040.79, 730,123.91 and 299,653.87

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Solution

The fourth proportional to 529,040.79, 730,123.91 and 299,653.87 is: 413,549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,040.79 : 730,123.91 = 299,653.87 : x
  2. Step 2: Convert to fraction form
    529,040.79/730,123.91 = 299,653.87/x
  3. Step 3: Cross multiply
    529,040.79x = 730,123.91 × 299,653.87
  4. Step 4: Simplify right side
    529,040.79x = 218,784,455,211.03
  5. Step 5: Solve for x
    x = 218,784,455,211.03/529,040.79
  6. Step 6: Final answer
    x = 413,549.31

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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.