Home / 890,154.82-1,335,442.29-291,113.65

Finding the Fourth Proportional to 890,154.82, 1,335,442.29 and 291,113.65

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Solution

The fourth proportional to 890,154.82, 1,335,442.29 and 291,113.65 is: 436,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,154.82 : 1,335,442.29 = 291,113.65 : x
  2. Step 2: Convert to fraction form
    890,154.82/1,335,442.29 = 291,113.65/x
  3. Step 3: Cross multiply
    890,154.82x = 1,335,442.29 × 291,113.65
  4. Step 4: Simplify right side
    890,154.82x = 388,765,479,406.26
  5. Step 5: Solve for x
    x = 388,765,479,406.26/890,154.82
  6. Step 6: Final answer
    x = 436,739.17

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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.