Home / 903,139.20-1,354,708.80-455,241.60

Finding the Fourth Proportional to 903,139.20, 1,354,708.80 and 455,241.60

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Solution

The fourth proportional to 903,139.20, 1,354,708.80 and 455,241.60 is: 682,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,139.20 : 1,354,708.80 = 455,241.60 : x
  2. Step 2: Convert to fraction form
    903,139.20/1,354,708.80 = 455,241.60/x
  3. Step 3: Cross multiply
    903,139.20x = 1,354,708.80 × 455,241.60
  4. Step 4: Simplify right side
    903,139.20x = 616,719,801,646.08
  5. Step 5: Solve for x
    x = 616,719,801,646.08/903,139.20
  6. Step 6: Final answer
    x = 682,862.40

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Similar ratio
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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.