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Finding the Fourth Proportional to 540,403.32, 745,795.17 and 298,680.66

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Solution

The fourth proportional to 540,403.32, 745,795.17 and 298,680.66 is: 412,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,403.32 : 745,795.17 = 298,680.66 : x
  2. Step 2: Convert to fraction form
    540,403.32/745,795.17 = 298,680.66/x
  3. Step 3: Cross multiply
    540,403.32x = 745,795.17 × 298,680.66
  4. Step 4: Simplify right side
    540,403.32x = 222,754,593,600.41
  5. Step 5: Solve for x
    x = 222,754,593,600.41/540,403.32
  6. Step 6: Final answer
    x = 412,200.64

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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.