Home / 993,433.80-1,489,308.30-361,979.40

Finding the Fourth Proportional to 993,433.80, 1,489,308.30 and 361,979.40

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Solution

The fourth proportional to 993,433.80, 1,489,308.30 and 361,979.40 is: 542,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,433.80 : 1,489,308.30 = 361,979.40 : x
  2. Step 2: Convert to fraction form
    993,433.80/1,489,308.30 = 361,979.40/x
  3. Step 3: Cross multiply
    993,433.80x = 1,489,308.30 × 361,979.40
  4. Step 4: Simplify right side
    993,433.80x = 539,098,924,849.02
  5. Step 5: Solve for x
    x = 539,098,924,849.02/993,433.80
  6. Step 6: Final answer
    x = 542,662.15

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1.5x scale

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.