Home / 528,039.60-790,309.80-486,049.20

Finding the Fourth Proportional to 528,039.60, 790,309.80 and 486,049.20

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Solution

The fourth proportional to 528,039.60, 790,309.80 and 486,049.20 is: 727,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,039.60 : 790,309.80 = 486,049.20 : x
  2. Step 2: Convert to fraction form
    528,039.60/790,309.80 = 486,049.20/x
  3. Step 3: Cross multiply
    528,039.60x = 790,309.80 × 486,049.20
  4. Step 4: Simplify right side
    528,039.60x = 384,129,446,042.16
  5. Step 5: Solve for x
    x = 384,129,446,042.16/528,039.60
  6. Step 6: Final answer
    x = 727,463.33

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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.