Home / 878,007.60-1,317,011.40-457,228.80

Finding the Fourth Proportional to 878,007.60, 1,317,011.40 and 457,228.80

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Solution

The fourth proportional to 878,007.60, 1,317,011.40 and 457,228.80 is: 685,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,007.60 : 1,317,011.40 = 457,228.80 : x
  2. Step 2: Convert to fraction form
    878,007.60/1,317,011.40 = 457,228.80/x
  3. Step 3: Cross multiply
    878,007.60x = 1,317,011.40 × 457,228.80
  4. Step 4: Simplify right side
    878,007.60x = 602,175,542,008.32
  5. Step 5: Solve for x
    x = 602,175,542,008.32/878,007.60
  6. Step 6: Final answer
    x = 685,843.20

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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.