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Finding the Fourth Proportional to 529,066.94, 729,998.79 and 314,279.42

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Solution

The fourth proportional to 529,066.94, 729,998.79 and 314,279.42 is: 433,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,066.94 : 729,998.79 = 314,279.42 : x
  2. Step 2: Convert to fraction form
    529,066.94/729,998.79 = 314,279.42/x
  3. Step 3: Cross multiply
    529,066.94x = 729,998.79 × 314,279.42
  4. Step 4: Simplify right side
    529,066.94x = 229,423,596,321.90
  5. Step 5: Solve for x
    x = 229,423,596,321.90/529,066.94
  6. Step 6: Final answer
    x = 433,638.13

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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.