Home / 750,985.20-1,126,801.80-435,711.60

Finding the Fourth Proportional to 750,985.20, 1,126,801.80 and 435,711.60

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Solution

The fourth proportional to 750,985.20, 1,126,801.80 and 435,711.60 is: 653,755.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,985.20 : 1,126,801.80 = 435,711.60 : x
  2. Step 2: Convert to fraction form
    750,985.20/1,126,801.80 = 435,711.60/x
  3. Step 3: Cross multiply
    750,985.20x = 1,126,801.80 × 435,711.60
  4. Step 4: Simplify right side
    750,985.20x = 490,960,615,160.88
  5. Step 5: Solve for x
    x = 490,960,615,160.88/750,985.20
  6. Step 6: Final answer
    x = 653,755.38

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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.