Home / 753,500.76-1,130,691.78-280,521.24

Finding the Fourth Proportional to 753,500.76, 1,130,691.78 and 280,521.24

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Solution

The fourth proportional to 753,500.76, 1,130,691.78 and 280,521.24 is: 420,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,500.76 : 1,130,691.78 = 280,521.24 : x
  2. Step 2: Convert to fraction form
    753,500.76/1,130,691.78 = 280,521.24/x
  3. Step 3: Cross multiply
    753,500.76x = 1,130,691.78 × 280,521.24
  4. Step 4: Simplify right side
    753,500.76x = 317,183,060,183.41
  5. Step 5: Solve for x
    x = 317,183,060,183.41/753,500.76
  6. Step 6: Final answer
    x = 420,945.91

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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.