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Finding the Fourth Proportional to 614,352.40, 921,528.60 and 348,631.90

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Solution

The fourth proportional to 614,352.40, 921,528.60 and 348,631.90 is: 522,947.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,352.40 : 921,528.60 = 348,631.90 : x
  2. Step 2: Convert to fraction form
    614,352.40/921,528.60 = 348,631.90/x
  3. Step 3: Cross multiply
    614,352.40x = 921,528.60 × 348,631.90
  4. Step 4: Simplify right side
    614,352.40x = 321,274,266,722.34
  5. Step 5: Solve for x
    x = 321,274,266,722.34/614,352.40
  6. Step 6: Final answer
    x = 522,947.85

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.