Home / 787,404.60-1,086,618.06-429,708.60

Finding the Fourth Proportional to 787,404.60, 1,086,618.06 and 429,708.60

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Solution

The fourth proportional to 787,404.60, 1,086,618.06 and 429,708.60 is: 592,997.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,404.60 : 1,086,618.06 = 429,708.60 : x
  2. Step 2: Convert to fraction form
    787,404.60/1,086,618.06 = 429,708.60/x
  3. Step 3: Cross multiply
    787,404.60x = 1,086,618.06 × 429,708.60
  4. Step 4: Simplify right side
    787,404.60x = 466,929,125,297.32
  5. Step 5: Solve for x
    x = 466,929,125,297.32/787,404.60
  6. Step 6: Final answer
    x = 592,997.71

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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.