Home / 887,976.60-1,331,090.10-438,766.80

Finding the Fourth Proportional to 887,976.60, 1,331,090.10 and 438,766.80

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Solution

The fourth proportional to 887,976.60, 1,331,090.10 and 438,766.80 is: 657,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,976.60 : 1,331,090.10 = 438,766.80 : x
  2. Step 2: Convert to fraction form
    887,976.60/1,331,090.10 = 438,766.80/x
  3. Step 3: Cross multiply
    887,976.60x = 1,331,090.10 × 438,766.80
  4. Step 4: Simplify right side
    887,976.60x = 584,038,143,688.68
  5. Step 5: Solve for x
    x = 584,038,143,688.68/887,976.60
  6. Step 6: Final answer
    x = 657,717.94

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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.