Home / 900,011.70-1,350,147.15-479,319.30

Finding the Fourth Proportional to 900,011.70, 1,350,147.15 and 479,319.30

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Solution

The fourth proportional to 900,011.70, 1,350,147.15 and 479,319.30 is: 719,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,011.70 : 1,350,147.15 = 479,319.30 : x
  2. Step 2: Convert to fraction form
    900,011.70/1,350,147.15 = 479,319.30/x
  3. Step 3: Cross multiply
    900,011.70x = 1,350,147.15 × 479,319.30
  4. Step 4: Simplify right side
    900,011.70x = 647,151,586,835.00
  5. Step 5: Solve for x
    x = 647,151,586,835.00/900,011.70
  6. Step 6: Final answer
    x = 719,047.97

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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.