Home / 1,327,329.40-1,990,994.10-486,484.60

Finding the Fourth Proportional to 1,327,329.40, 1,990,994.10 and 486,484.60

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Solution

The fourth proportional to 1,327,329.40, 1,990,994.10 and 486,484.60 is: 729,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,329.40 : 1,990,994.10 = 486,484.60 : x
  2. Step 2: Convert to fraction form
    1,327,329.40/1,990,994.10 = 486,484.60/x
  3. Step 3: Cross multiply
    1,327,329.40x = 1,990,994.10 × 486,484.60
  4. Step 4: Simplify right side
    1,327,329.40x = 968,587,968,340.86
  5. Step 5: Solve for x
    x = 968,587,968,340.86/1,327,329.40
  6. Step 6: Final answer
    x = 729,726.90

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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.