Home / 540,102.04-745,355.86-298,400.20

Finding the Fourth Proportional to 540,102.04, 745,355.86 and 298,400.20

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Solution

The fourth proportional to 540,102.04, 745,355.86 and 298,400.20 is: 411,800.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,102.04 : 745,355.86 = 298,400.20 : x
  2. Step 2: Convert to fraction form
    540,102.04/745,355.86 = 298,400.20/x
  3. Step 3: Cross multiply
    540,102.04x = 745,355.86 × 298,400.20
  4. Step 4: Simplify right side
    540,102.04x = 222,414,337,695.17
  5. Step 5: Solve for x
    x = 222,414,337,695.17/540,102.04
  6. Step 6: Final answer
    x = 411,800.59

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Double scale
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Similar ratio
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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.