Home / 870,983.64-1,306,474.98-271,996.14

Finding the Fourth Proportional to 870,983.64, 1,306,474.98 and 271,996.14

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Solution

The fourth proportional to 870,983.64, 1,306,474.98 and 271,996.14 is: 407,994.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,983.64 : 1,306,474.98 = 271,996.14 : x
  2. Step 2: Convert to fraction form
    870,983.64/1,306,474.98 = 271,996.14/x
  3. Step 3: Cross multiply
    870,983.64x = 1,306,474.98 × 271,996.14
  4. Step 4: Simplify right side
    870,983.64x = 355,356,151,566.58
  5. Step 5: Solve for x
    x = 355,356,151,566.58/870,983.64
  6. Step 6: Final answer
    x = 407,994.06

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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.