Home / 724,710.80-1,087,066.20-662,709.35

Finding the Fourth Proportional to 724,710.80, 1,087,066.20 and 662,709.35

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Solution

The fourth proportional to 724,710.80, 1,087,066.20 and 662,709.35 is: 994,064.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,710.80 : 1,087,066.20 = 662,709.35 : x
  2. Step 2: Convert to fraction form
    724,710.80/1,087,066.20 = 662,709.35/x
  3. Step 3: Cross multiply
    724,710.80x = 1,087,066.20 × 662,709.35
  4. Step 4: Simplify right side
    724,710.80x = 720,408,934,808.97
  5. Step 5: Solve for x
    x = 720,408,934,808.97/724,710.80
  6. Step 6: Final answer
    x = 994,064.03

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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.