Home / 708,500.60-977,177.80-490,791.43

Finding the Fourth Proportional to 708,500.60, 977,177.80 and 490,791.43

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Solution

The fourth proportional to 708,500.60, 977,177.80 and 490,791.43 is: 676,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,500.60 : 977,177.80 = 490,791.43 : x
  2. Step 2: Convert to fraction form
    708,500.60/977,177.80 = 490,791.43/x
  3. Step 3: Cross multiply
    708,500.60x = 977,177.80 × 490,791.43
  4. Step 4: Simplify right side
    708,500.60x = 479,590,489,826.25
  5. Step 5: Solve for x
    x = 479,590,489,826.25/708,500.60
  6. Step 6: Final answer
    x = 676,909.08

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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.