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Finding the Fourth Proportional to 440,046.40, 660,004.80 and 124,535.20

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Solution

The fourth proportional to 440,046.40, 660,004.80 and 124,535.20 is: 186,784.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,046.40 : 660,004.80 = 124,535.20 : x
  2. Step 2: Convert to fraction form
    440,046.40/660,004.80 = 124,535.20/x
  3. Step 3: Cross multiply
    440,046.40x = 660,004.80 × 124,535.20
  4. Step 4: Simplify right side
    440,046.40x = 82,193,829,768.96
  5. Step 5: Solve for x
    x = 82,193,829,768.96/440,046.40
  6. Step 6: Final answer
    x = 186,784.46

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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.