Home / 890,115.04-1,335,382.60-291,073.87

Finding the Fourth Proportional to 890,115.04, 1,335,382.60 and 291,073.87

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Solution

The fourth proportional to 890,115.04, 1,335,382.60 and 291,073.87 is: 436,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,115.04 : 1,335,382.60 = 291,073.87 : x
  2. Step 2: Convert to fraction form
    890,115.04/1,335,382.60 = 291,073.87/x
  3. Step 3: Cross multiply
    890,115.04x = 1,335,382.60 × 291,073.87
  4. Step 4: Simplify right side
    890,115.04x = 388,694,981,312.66
  5. Step 5: Solve for x
    x = 388,694,981,312.66/890,115.04
  6. Step 6: Final answer
    x = 436,679.49

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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.