Home / 1,003,978.91-1,385,483.20-545,084.48

Finding the Fourth Proportional to 1,003,978.91, 1,385,483.20 and 545,084.48

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Solution

The fourth proportional to 1,003,978.91, 1,385,483.20 and 545,084.48 is: 752,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,978.91 : 1,385,483.20 = 545,084.48 : x
  2. Step 2: Convert to fraction form
    1,003,978.91/1,385,483.20 = 545,084.48/x
  3. Step 3: Cross multiply
    1,003,978.91x = 1,385,483.20 × 545,084.48
  4. Step 4: Simplify right side
    1,003,978.91x = 755,205,379,967.90
  5. Step 5: Solve for x
    x = 755,205,379,967.90/1,003,978.91
  6. Step 6: Final answer
    x = 752,212.40

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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.