Home / 890,156.82-1,335,445.29-291,115.65

Finding the Fourth Proportional to 890,156.82, 1,335,445.29 and 291,115.65

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Solution

The fourth proportional to 890,156.82, 1,335,445.29 and 291,115.65 is: 436,742.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,156.82 : 1,335,445.29 = 291,115.65 : x
  2. Step 2: Convert to fraction form
    890,156.82/1,335,445.29 = 291,115.65/x
  3. Step 3: Cross multiply
    890,156.82x = 1,335,445.29 × 291,115.65
  4. Step 4: Simplify right side
    890,156.82x = 388,769,023,637.79
  5. Step 5: Solve for x
    x = 388,769,023,637.79/890,156.82
  6. Step 6: Final answer
    x = 436,742.17

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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.