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Finding the Fourth Proportional to 540,113.79, 745,372.08 and 298,411.95

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Solution

The fourth proportional to 540,113.79, 745,372.08 and 298,411.95 is: 411,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,113.79 : 745,372.08 = 298,411.95 : x
  2. Step 2: Convert to fraction form
    540,113.79/745,372.08 = 298,411.95/x
  3. Step 3: Cross multiply
    540,113.79x = 745,372.08 × 298,411.95
  4. Step 4: Simplify right side
    540,113.79x = 222,427,935,868.36
  5. Step 5: Solve for x
    x = 222,427,935,868.36/540,113.79
  6. Step 6: Final answer
    x = 411,816.81

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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.