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Finding the Fourth Proportional to 671,921.52, 927,251.76 and 370,115.52

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Solution

The fourth proportional to 671,921.52, 927,251.76 and 370,115.52 is: 510,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,921.52 : 927,251.76 = 370,115.52 : x
  2. Step 2: Convert to fraction form
    671,921.52/927,251.76 = 370,115.52/x
  3. Step 3: Cross multiply
    671,921.52x = 927,251.76 × 370,115.52
  4. Step 4: Simplify right side
    671,921.52x = 343,190,267,323.32
  5. Step 5: Solve for x
    x = 343,190,267,323.32/671,921.52
  6. Step 6: Final answer
    x = 510,759.45

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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.