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Finding the Fourth Proportional to 552,034.08, 762,385.26 and 380,398.32

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Solution

The fourth proportional to 552,034.08, 762,385.26 and 380,398.32 is: 525,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,034.08 : 762,385.26 = 380,398.32 : x
  2. Step 2: Convert to fraction form
    552,034.08/762,385.26 = 380,398.32/x
  3. Step 3: Cross multiply
    552,034.08x = 762,385.26 × 380,398.32
  4. Step 4: Simplify right side
    552,034.08x = 290,010,072,096.76
  5. Step 5: Solve for x
    x = 290,010,072,096.76/552,034.08
  6. Step 6: Final answer
    x = 525,348.13

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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.