Home / 688,116.30-1,032,174.45-214,842.21

Finding the Fourth Proportional to 688,116.30, 1,032,174.45 and 214,842.21

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Solution

The fourth proportional to 688,116.30, 1,032,174.45 and 214,842.21 is: 322,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,116.30 : 1,032,174.45 = 214,842.21 : x
  2. Step 2: Convert to fraction form
    688,116.30/1,032,174.45 = 214,842.21/x
  3. Step 3: Cross multiply
    688,116.30x = 1,032,174.45 × 214,842.21
  4. Step 4: Simplify right side
    688,116.30x = 221,754,639,943.54
  5. Step 5: Solve for x
    x = 221,754,639,943.54/688,116.30
  6. Step 6: Final answer
    x = 322,263.32

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Similar ratio
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1.5x scale

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.