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Finding the Fourth Proportional to 867,951.93, 1,197,720.83 and 480,744.40

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Solution

The fourth proportional to 867,951.93, 1,197,720.83 and 480,744.40 is: 663,398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,951.93 : 1,197,720.83 = 480,744.40 : x
  2. Step 2: Convert to fraction form
    867,951.93/1,197,720.83 = 480,744.40/x
  3. Step 3: Cross multiply
    867,951.93x = 1,197,720.83 × 480,744.40
  4. Step 4: Simplify right side
    867,951.93x = 575,797,581,785.85
  5. Step 5: Solve for x
    x = 575,797,581,785.85/867,951.93
  6. Step 6: Final answer
    x = 663,398.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.