Home / 540,187.20-745,439.28-298,465.44

Finding the Fourth Proportional to 540,187.20, 745,439.28 and 298,465.44

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Solution

The fourth proportional to 540,187.20, 745,439.28 and 298,465.44 is: 411,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,187.20 : 745,439.28 = 298,465.44 : x
  2. Step 2: Convert to fraction form
    540,187.20/745,439.28 = 298,465.44/x
  3. Step 3: Cross multiply
    540,187.20x = 745,439.28 × 298,465.44
  4. Step 4: Simplify right side
    540,187.20x = 222,487,862,698.48
  5. Step 5: Solve for x
    x = 222,487,862,698.48/540,187.20
  6. Step 6: Final answer
    x = 411,871.78

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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.