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Finding the Fourth Proportional to 529,995.74, 731,327.85 and 358,287.21

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Solution

The fourth proportional to 529,995.74, 731,327.85 and 358,287.21 is: 494,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,995.74 : 731,327.85 = 358,287.21 : x
  2. Step 2: Convert to fraction form
    529,995.74/731,327.85 = 358,287.21/x
  3. Step 3: Cross multiply
    529,995.74x = 731,327.85 × 358,287.21
  4. Step 4: Simplify right side
    529,995.74x = 262,025,414,971.80
  5. Step 5: Solve for x
    x = 262,025,414,971.80/529,995.74
  6. Step 6: Final answer
    x = 494,391.55

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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.