Home / 750,815.92-1,035,295.72-478,452.40

Finding the Fourth Proportional to 750,815.92, 1,035,295.72 and 478,452.40

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Solution

The fourth proportional to 750,815.92, 1,035,295.72 and 478,452.40 is: 659,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,815.92 : 1,035,295.72 = 478,452.40 : x
  2. Step 2: Convert to fraction form
    750,815.92/1,035,295.72 = 478,452.40/x
  3. Step 3: Cross multiply
    750,815.92x = 1,035,295.72 × 478,452.40
  4. Step 4: Simplify right side
    750,815.92x = 495,339,721,943.73
  5. Step 5: Solve for x
    x = 495,339,721,943.73/750,815.92
  6. Step 6: Final answer
    x = 659,735.24

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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.