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Finding the Fourth Proportional to 534,688, 737,869.60 and 319,837.12

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Solution

The fourth proportional to 534,688, 737,869.60 and 319,837.12 is: 441,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,688 : 737,869.60 = 319,837.12 : x
  2. Step 2: Convert to fraction form
    534,688/737,869.60 = 319,837.12/x
  3. Step 3: Cross multiply
    534,688x = 737,869.60 × 319,837.12
  4. Step 4: Simplify right side
    534,688x = 235,998,087,799.55
  5. Step 5: Solve for x
    x = 235,998,087,799.55/534,688
  6. Step 6: Final answer
    x = 441,375.32

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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.