Home / 520,852.20-781,278.30-146,875.20

Finding the Fourth Proportional to 520,852.20, 781,278.30 and 146,875.20

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Solution

The fourth proportional to 520,852.20, 781,278.30 and 146,875.20 is: 220,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,852.20 : 781,278.30 = 146,875.20 : x
  2. Step 2: Convert to fraction form
    520,852.20/781,278.30 = 146,875.20/x
  3. Step 3: Cross multiply
    520,852.20x = 781,278.30 × 146,875.20
  4. Step 4: Simplify right side
    520,852.20x = 114,750,406,568.16
  5. Step 5: Solve for x
    x = 114,750,406,568.16/520,852.20
  6. Step 6: Final answer
    x = 220,312.80

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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.