Home / 687,987.96-1,030,793.67-372,666.30

Finding the Fourth Proportional to 687,987.96, 1,030,793.67 and 372,666.30

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Solution

The fourth proportional to 687,987.96, 1,030,793.67 and 372,666.30 is: 558,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,987.96 : 1,030,793.67 = 372,666.30 : x
  2. Step 2: Convert to fraction form
    687,987.96/1,030,793.67 = 372,666.30/x
  3. Step 3: Cross multiply
    687,987.96x = 1,030,793.67 × 372,666.30
  4. Step 4: Simplify right side
    687,987.96x = 384,142,063,062.32
  5. Step 5: Solve for x
    x = 384,142,063,062.32/687,987.96
  6. Step 6: Final answer
    x = 558,355.79

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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.