Home / 710,655.70-1,065,983.55-445,234.90

Finding the Fourth Proportional to 710,655.70, 1,065,983.55 and 445,234.90

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Solution

The fourth proportional to 710,655.70, 1,065,983.55 and 445,234.90 is: 667,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,655.70 : 1,065,983.55 = 445,234.90 : x
  2. Step 2: Convert to fraction form
    710,655.70/1,065,983.55 = 445,234.90/x
  3. Step 3: Cross multiply
    710,655.70x = 1,065,983.55 × 445,234.90
  4. Step 4: Simplify right side
    710,655.70x = 474,613,079,285.90
  5. Step 5: Solve for x
    x = 474,613,079,285.90/710,655.70
  6. Step 6: Final answer
    x = 667,852.35

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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.