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Finding the Fourth Proportional to 540,100.76, 745,339.04 and 313,760.84

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Solution

The fourth proportional to 540,100.76, 745,339.04 and 313,760.84 is: 432,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,100.76 : 745,339.04 = 313,760.84 : x
  2. Step 2: Convert to fraction form
    540,100.76/745,339.04 = 313,760.84/x
  3. Step 3: Cross multiply
    540,100.76x = 745,339.04 × 313,760.84
  4. Step 4: Simplify right side
    540,100.76x = 233,858,203,275.19
  5. Step 5: Solve for x
    x = 233,858,203,275.19/540,100.76
  6. Step 6: Final answer
    x = 432,989.95

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Double scale
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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.