Home / 761,740.40-1,142,902.20-749,784.80

Finding the Fourth Proportional to 761,740.40, 1,142,902.20 and 749,784.80

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Solution

The fourth proportional to 761,740.40, 1,142,902.20 and 749,784.80 is: 1,124,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,740.40 : 1,142,902.20 = 749,784.80 : x
  2. Step 2: Convert to fraction form
    761,740.40/1,142,902.20 = 749,784.80/x
  3. Step 3: Cross multiply
    761,740.40x = 1,142,902.20 × 749,784.80
  4. Step 4: Simplify right side
    761,740.40x = 856,930,697,446.56
  5. Step 5: Solve for x
    x = 856,930,697,446.56/761,740.40
  6. Step 6: Final answer
    x = 1,124,964.22

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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.