Home / 787,557.60-1,179,586.80-413,143.20

Finding the Fourth Proportional to 787,557.60, 1,179,586.80 and 413,143.20

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Solution

The fourth proportional to 787,557.60, 1,179,586.80 and 413,143.20 is: 618,796.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,557.60 : 1,179,586.80 = 413,143.20 : x
  2. Step 2: Convert to fraction form
    787,557.60/1,179,586.80 = 413,143.20/x
  3. Step 3: Cross multiply
    787,557.60x = 1,179,586.80 × 413,143.20
  4. Step 4: Simplify right side
    787,557.60x = 487,338,265,229.76
  5. Step 5: Solve for x
    x = 487,338,265,229.76/787,557.60
  6. Step 6: Final answer
    x = 618,796.98

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1.5x scale

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.