Home / 787,128.60-1,181,276.10-577,176.60

Finding the Fourth Proportional to 787,128.60, 1,181,276.10 and 577,176.60

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Solution

The fourth proportional to 787,128.60, 1,181,276.10 and 577,176.60 is: 866,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,128.60 : 1,181,276.10 = 577,176.60 : x
  2. Step 2: Convert to fraction form
    787,128.60/1,181,276.10 = 577,176.60/x
  3. Step 3: Cross multiply
    787,128.60x = 1,181,276.10 × 577,176.60
  4. Step 4: Simplify right side
    787,128.60x = 681,804,923,059.26
  5. Step 5: Solve for x
    x = 681,804,923,059.26/787,128.60
  6. Step 6: Final answer
    x = 866,192.54

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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.