Home / 560,002.20-840,003.30-308,059.80

Finding the Fourth Proportional to 560,002.20, 840,003.30 and 308,059.80

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Solution

The fourth proportional to 560,002.20, 840,003.30 and 308,059.80 is: 462,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,002.20 : 840,003.30 = 308,059.80 : x
  2. Step 2: Convert to fraction form
    560,002.20/840,003.30 = 308,059.80/x
  3. Step 3: Cross multiply
    560,002.20x = 840,003.30 × 308,059.80
  4. Step 4: Simplify right side
    560,002.20x = 258,771,248,597.34
  5. Step 5: Solve for x
    x = 258,771,248,597.34/560,002.20
  6. Step 6: Final answer
    x = 462,089.70

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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.