Home / 578,565.11-798,359.07-320,435.30

Finding the Fourth Proportional to 578,565.11, 798,359.07 and 320,435.30

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Solution

The fourth proportional to 578,565.11, 798,359.07 and 320,435.30 is: 442,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,565.11 : 798,359.07 = 320,435.30 : x
  2. Step 2: Convert to fraction form
    578,565.11/798,359.07 = 320,435.30/x
  3. Step 3: Cross multiply
    578,565.11x = 798,359.07 × 320,435.30
  4. Step 4: Simplify right side
    578,565.11x = 255,822,428,103.17
  5. Step 5: Solve for x
    x = 255,822,428,103.17/578,565.11
  6. Step 6: Final answer
    x = 442,167.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.