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Finding the Fourth Proportional to 545,850, 753,277.86 and 319,500.36

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Solution

The fourth proportional to 545,850, 753,277.86 and 319,500.36 is: 440,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,850 : 753,277.86 = 319,500.36 : x
  2. Step 2: Convert to fraction form
    545,850/753,277.86 = 319,500.36/x
  3. Step 3: Cross multiply
    545,850x = 753,277.86 × 319,500.36
  4. Step 4: Simplify right side
    545,850x = 240,672,547,450.03
  5. Step 5: Solve for x
    x = 240,672,547,450.03/545,850
  6. Step 6: Final answer
    x = 440,913.34

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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.