Home / 688,127.18-1,032,190.86-214,853.08

Finding the Fourth Proportional to 688,127.18, 1,032,190.86 and 214,853.08

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Solution

The fourth proportional to 688,127.18, 1,032,190.86 and 214,853.08 is: 322,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,127.18 : 1,032,190.86 = 214,853.08 : x
  2. Step 2: Convert to fraction form
    688,127.18/1,032,190.86 = 214,853.08/x
  3. Step 3: Cross multiply
    688,127.18x = 1,032,190.86 × 214,853.08
  4. Step 4: Simplify right side
    688,127.18x = 221,769,385,418.85
  5. Step 5: Solve for x
    x = 221,769,385,418.85/688,127.18
  6. Step 6: Final answer
    x = 322,279.65

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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.