Home / 636,766.08-878,741.37-350,278.80

Finding the Fourth Proportional to 636,766.08, 878,741.37 and 350,278.80

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Solution

The fourth proportional to 636,766.08, 878,741.37 and 350,278.80 is: 483,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,766.08 : 878,741.37 = 350,278.80 : x
  2. Step 2: Convert to fraction form
    636,766.08/878,741.37 = 350,278.80/x
  3. Step 3: Cross multiply
    636,766.08x = 878,741.37 × 350,278.80
  4. Step 4: Simplify right side
    636,766.08x = 307,804,472,593.96
  5. Step 5: Solve for x
    x = 307,804,472,593.96/636,766.08
  6. Step 6: Final answer
    x = 483,387.04

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1.5x scale

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.