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Finding the Fourth Proportional to 540,008.18, 745,203.54 and 294,989.97

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Solution

The fourth proportional to 540,008.18, 745,203.54 and 294,989.97 is: 407,081.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,008.18 : 745,203.54 = 294,989.97 : x
  2. Step 2: Convert to fraction form
    540,008.18/745,203.54 = 294,989.97/x
  3. Step 3: Cross multiply
    540,008.18x = 745,203.54 × 294,989.97
  4. Step 4: Simplify right side
    540,008.18x = 219,827,569,908.49
  5. Step 5: Solve for x
    x = 219,827,569,908.49/540,008.18
  6. Step 6: Final answer
    x = 407,081.92

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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.