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Finding the Fourth Proportional to 560,848.68, 840,573.18 and 280,446.12

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Solution

The fourth proportional to 560,848.68, 840,573.18 and 280,446.12 is: 420,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,848.68 : 840,573.18 = 280,446.12 : x
  2. Step 2: Convert to fraction form
    560,848.68/840,573.18 = 280,446.12/x
  3. Step 3: Cross multiply
    560,848.68x = 840,573.18 × 280,446.12
  4. Step 4: Simplify right side
    560,848.68x = 235,735,486,907.06
  5. Step 5: Solve for x
    x = 235,735,486,907.06/560,848.68
  6. Step 6: Final answer
    x = 420,319.23

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Similar ratio
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1.5x scale

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.