Home / 684,577.80-1,026,963.90-211,213.80

Finding the Fourth Proportional to 684,577.80, 1,026,963.90 and 211,213.80

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Solution

The fourth proportional to 684,577.80, 1,026,963.90 and 211,213.80 is: 316,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,577.80 : 1,026,963.90 = 211,213.80 : x
  2. Step 2: Convert to fraction form
    684,577.80/1,026,963.90 = 211,213.80/x
  3. Step 3: Cross multiply
    684,577.80x = 1,026,963.90 × 211,213.80
  4. Step 4: Simplify right side
    684,577.80x = 216,908,947,781.82
  5. Step 5: Solve for x
    x = 216,908,947,781.82/684,577.80
  6. Step 6: Final answer
    x = 316,850.69

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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.