Home / 990,447.28-1,486,261.14-359,410.30

Finding the Fourth Proportional to 990,447.28, 1,486,261.14 and 359,410.30

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Solution

The fourth proportional to 990,447.28, 1,486,261.14 and 359,410.30 is: 539,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,447.28 : 1,486,261.14 = 359,410.30 : x
  2. Step 2: Convert to fraction form
    990,447.28/1,486,261.14 = 359,410.30/x
  3. Step 3: Cross multiply
    990,447.28x = 1,486,261.14 × 359,410.30
  4. Step 4: Simplify right side
    990,447.28x = 534,177,562,205.74
  5. Step 5: Solve for x
    x = 534,177,562,205.74/990,447.28
  6. Step 6: Final answer
    x = 539,329.63

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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.