Home / 708,938.32-977,997.21-479,575.90

Finding the Fourth Proportional to 708,938.32, 977,997.21 and 479,575.90

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Solution

The fourth proportional to 708,938.32, 977,997.21 and 479,575.90 is: 661,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,938.32 : 977,997.21 = 479,575.90 : x
  2. Step 2: Convert to fraction form
    708,938.32/977,997.21 = 479,575.90/x
  3. Step 3: Cross multiply
    708,938.32x = 977,997.21 × 479,575.90
  4. Step 4: Simplify right side
    708,938.32x = 469,023,892,183.24
  5. Step 5: Solve for x
    x = 469,023,892,183.24/708,938.32
  6. Step 6: Final answer
    x = 661,586.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.