Home / 1,130,512.80-1,695,769.20-499,101.60

Finding the Fourth Proportional to 1,130,512.80, 1,695,769.20 and 499,101.60

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Solution

The fourth proportional to 1,130,512.80, 1,695,769.20 and 499,101.60 is: 748,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,512.80 : 1,695,769.20 = 499,101.60 : x
  2. Step 2: Convert to fraction form
    1,130,512.80/1,695,769.20 = 499,101.60/x
  3. Step 3: Cross multiply
    1,130,512.80x = 1,695,769.20 × 499,101.60
  4. Step 4: Simplify right side
    1,130,512.80x = 846,361,120,950.72
  5. Step 5: Solve for x
    x = 846,361,120,950.72/1,130,512.80
  6. Step 6: Final answer
    x = 748,652.40

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Double scale
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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.