Home / 787,569.60-1,179,280.80-576,062.40

Finding the Fourth Proportional to 787,569.60, 1,179,280.80 and 576,062.40

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Solution

The fourth proportional to 787,569.60, 1,179,280.80 and 576,062.40 is: 862,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,569.60 : 1,179,280.80 = 576,062.40 : x
  2. Step 2: Convert to fraction form
    787,569.60/1,179,280.80 = 576,062.40/x
  3. Step 3: Cross multiply
    787,569.60x = 1,179,280.80 × 576,062.40
  4. Step 4: Simplify right side
    787,569.60x = 679,339,327,921.92
  5. Step 5: Solve for x
    x = 679,339,327,921.92/787,569.60
  6. Step 6: Final answer
    x = 862,576.88

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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.