Home / 703,415.40-1,055,123.10-672,700.20

Finding the Fourth Proportional to 703,415.40, 1,055,123.10 and 672,700.20

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Solution

The fourth proportional to 703,415.40, 1,055,123.10 and 672,700.20 is: 1,009,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,415.40 : 1,055,123.10 = 672,700.20 : x
  2. Step 2: Convert to fraction form
    703,415.40/1,055,123.10 = 672,700.20/x
  3. Step 3: Cross multiply
    703,415.40x = 1,055,123.10 × 672,700.20
  4. Step 4: Simplify right side
    703,415.40x = 709,781,520,394.62
  5. Step 5: Solve for x
    x = 709,781,520,394.62/703,415.40
  6. Step 6: Final answer
    x = 1,009,050.30

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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.