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Finding the Fourth Proportional to 560,423.80, 840,635.70 and 186,446.80

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Solution

The fourth proportional to 560,423.80, 840,635.70 and 186,446.80 is: 279,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,423.80 : 840,635.70 = 186,446.80 : x
  2. Step 2: Convert to fraction form
    560,423.80/840,635.70 = 186,446.80/x
  3. Step 3: Cross multiply
    560,423.80x = 840,635.70 × 186,446.80
  4. Step 4: Simplify right side
    560,423.80x = 156,733,836,230.76
  5. Step 5: Solve for x
    x = 156,733,836,230.76/560,423.80
  6. Step 6: Final answer
    x = 279,670.20

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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.