Home / 717,849.60-990,627.84-395,562.24

Finding the Fourth Proportional to 717,849.60, 990,627.84 and 395,562.24

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Solution

The fourth proportional to 717,849.60, 990,627.84 and 395,562.24 is: 545,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,849.60 : 990,627.84 = 395,562.24 : x
  2. Step 2: Convert to fraction form
    717,849.60/990,627.84 = 395,562.24/x
  3. Step 3: Cross multiply
    717,849.60x = 990,627.84 × 395,562.24
  4. Step 4: Simplify right side
    717,849.60x = 391,854,967,396.76
  5. Step 5: Solve for x
    x = 391,854,967,396.76/717,849.60
  6. Step 6: Final answer
    x = 545,873.35

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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.