Home / 753,429.20-1,130,143.80-192,463.70

Finding the Fourth Proportional to 753,429.20, 1,130,143.80 and 192,463.70

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Solution

The fourth proportional to 753,429.20, 1,130,143.80 and 192,463.70 is: 288,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,429.20 : 1,130,143.80 = 192,463.70 : x
  2. Step 2: Convert to fraction form
    753,429.20/1,130,143.80 = 192,463.70/x
  3. Step 3: Cross multiply
    753,429.20x = 1,130,143.80 × 192,463.70
  4. Step 4: Simplify right side
    753,429.20x = 217,511,657,280.06
  5. Step 5: Solve for x
    x = 217,511,657,280.06/753,429.20
  6. Step 6: Final answer
    x = 288,695.55

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Double scale
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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.