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Finding the Fourth Proportional to 545,904, 753,352.92 and 319,554.36

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Solution

The fourth proportional to 545,904, 753,352.92 and 319,554.36 is: 440,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,904 : 753,352.92 = 319,554.36 : x
  2. Step 2: Convert to fraction form
    545,904/753,352.92 = 319,554.36/x
  3. Step 3: Cross multiply
    545,904x = 753,352.92 × 319,554.36
  4. Step 4: Simplify right side
    545,904x = 240,737,210,204.73
  5. Step 5: Solve for x
    x = 240,737,210,204.73/545,904
  6. Step 6: Final answer
    x = 440,988.18

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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.