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Finding the Fourth Proportional to 545,702.94, 753,077.85 and 313,167.78

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Solution

The fourth proportional to 545,702.94, 753,077.85 and 313,167.78 is: 432,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,702.94 : 753,077.85 = 313,167.78 : x
  2. Step 2: Convert to fraction form
    545,702.94/753,077.85 = 313,167.78/x
  3. Step 3: Cross multiply
    545,702.94x = 753,077.85 × 313,167.78
  4. Step 4: Simplify right side
    545,702.94x = 235,839,718,451.67
  5. Step 5: Solve for x
    x = 235,839,718,451.67/545,702.94
  6. Step 6: Final answer
    x = 432,176.01

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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.