Home / 717,411.20-1,076,077.76-218,736

Finding the Fourth Proportional to 717,411.20, 1,076,077.76 and 218,736

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Solution

The fourth proportional to 717,411.20, 1,076,077.76 and 218,736 is: 328,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,411.20 : 1,076,077.76 = 218,736 : x
  2. Step 2: Convert to fraction form
    717,411.20/1,076,077.76 = 218,736/x
  3. Step 3: Cross multiply
    717,411.20x = 1,076,077.76 × 218,736
  4. Step 4: Simplify right side
    717,411.20x = 235,376,944,911.36
  5. Step 5: Solve for x
    x = 235,376,944,911.36/717,411.20
  6. Step 6: Final answer
    x = 328,092.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.