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Finding the Fourth Proportional to 529,228.78, 730,398.33 and 314,369.70

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Solution

The fourth proportional to 529,228.78, 730,398.33 and 314,369.70 is: 433,867.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,228.78 : 730,398.33 = 314,369.70 : x
  2. Step 2: Convert to fraction form
    529,228.78/730,398.33 = 314,369.70/x
  3. Step 3: Cross multiply
    529,228.78x = 730,398.33 × 314,369.70
  4. Step 4: Simplify right side
    529,228.78x = 229,615,103,882.60
  5. Step 5: Solve for x
    x = 229,615,103,882.60/529,228.78
  6. Step 6: Final answer
    x = 433,867.38

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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.