Home / 1,125,250.56-1,687,331.52-415,612.80

Finding the Fourth Proportional to 1,125,250.56, 1,687,331.52 and 415,612.80

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Solution

The fourth proportional to 1,125,250.56, 1,687,331.52 and 415,612.80 is: 623,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,250.56 : 1,687,331.52 = 415,612.80 : x
  2. Step 2: Convert to fraction form
    1,125,250.56/1,687,331.52 = 415,612.80/x
  3. Step 3: Cross multiply
    1,125,250.56x = 1,687,331.52 × 415,612.80
  4. Step 4: Simplify right side
    1,125,250.56x = 701,276,577,555.46
  5. Step 5: Solve for x
    x = 701,276,577,555.46/1,125,250.56
  6. Step 6: Final answer
    x = 623,218.15

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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.