Home / 1,323,101.80-1,982,463.90-761,156.20

Finding the Fourth Proportional to 1,323,101.80, 1,982,463.90 and 761,156.20

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Solution

The fourth proportional to 1,323,101.80, 1,982,463.90 and 761,156.20 is: 1,140,475.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,101.80 : 1,982,463.90 = 761,156.20 : x
  2. Step 2: Convert to fraction form
    1,323,101.80/1,982,463.90 = 761,156.20/x
  3. Step 3: Cross multiply
    1,323,101.80x = 1,982,463.90 × 761,156.20
  4. Step 4: Simplify right side
    1,323,101.80x = 1,508,964,688,761.18
  5. Step 5: Solve for x
    x = 1,508,964,688,761.18/1,323,101.80
  6. Step 6: Final answer
    x = 1,140,475.12

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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.