Home / 870,473.88-1,304,922.96-309,377.16

Finding the Fourth Proportional to 870,473.88, 1,304,922.96 and 309,377.16

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Solution

The fourth proportional to 870,473.88, 1,304,922.96 and 309,377.16 is: 463,785.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,473.88 : 1,304,922.96 = 309,377.16 : x
  2. Step 2: Convert to fraction form
    870,473.88/1,304,922.96 = 309,377.16/x
  3. Step 3: Cross multiply
    870,473.88x = 1,304,922.96 × 309,377.16
  4. Step 4: Simplify right side
    870,473.88x = 403,713,359,383.59
  5. Step 5: Solve for x
    x = 403,713,359,383.59/870,473.88
  6. Step 6: Final answer
    x = 463,785.72

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Double scale
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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.