Home / 859,765.80-1,286,586.90-748,666.20

Finding the Fourth Proportional to 859,765.80, 1,286,586.90 and 748,666.20

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Solution

The fourth proportional to 859,765.80, 1,286,586.90 and 748,666.20 is: 1,120,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,765.80 : 1,286,586.90 = 748,666.20 : x
  2. Step 2: Convert to fraction form
    859,765.80/1,286,586.90 = 748,666.20/x
  3. Step 3: Cross multiply
    859,765.80x = 1,286,586.90 × 748,666.20
  4. Step 4: Simplify right side
    859,765.80x = 963,224,125,392.78
  5. Step 5: Solve for x
    x = 963,224,125,392.78/859,765.80
  6. Step 6: Final answer
    x = 1,120,333.15

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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.