Home / 684,001.98-1,026,113.22-210,687.12

Finding the Fourth Proportional to 684,001.98, 1,026,113.22 and 210,687.12

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Solution

The fourth proportional to 684,001.98, 1,026,113.22 and 210,687.12 is: 316,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,001.98 : 1,026,113.22 = 210,687.12 : x
  2. Step 2: Convert to fraction form
    684,001.98/1,026,113.22 = 210,687.12/x
  3. Step 3: Cross multiply
    684,001.98x = 1,026,113.22 × 210,687.12
  4. Step 4: Simplify right side
    684,001.98x = 216,188,839,115.73
  5. Step 5: Solve for x
    x = 216,188,839,115.73/684,001.98
  6. Step 6: Final answer
    x = 316,064.64

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Double scale
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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.