Home / 990,493.53-1,486,330.52-359,456.55

Finding the Fourth Proportional to 990,493.53, 1,486,330.52 and 359,456.55

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Solution

The fourth proportional to 990,493.53, 1,486,330.52 and 359,456.55 is: 539,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,493.53 : 1,486,330.52 = 359,456.55 : x
  2. Step 2: Convert to fraction form
    990,493.53/1,486,330.52 = 359,456.55/x
  3. Step 3: Cross multiply
    990,493.53x = 1,486,330.52 × 359,456.55
  4. Step 4: Simplify right side
    990,493.53x = 534,271,239,081.62
  5. Step 5: Solve for x
    x = 534,271,239,081.62/990,493.53
  6. Step 6: Final answer
    x = 539,399.02

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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.