Home / 890,127.18-1,335,400.78-291,086

Finding the Fourth Proportional to 890,127.18, 1,335,400.78 and 291,086

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Solution

The fourth proportional to 890,127.18, 1,335,400.78 and 291,086 is: 436,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,127.18 : 1,335,400.78 = 291,086 : x
  2. Step 2: Convert to fraction form
    890,127.18/1,335,400.78 = 291,086/x
  3. Step 3: Cross multiply
    890,127.18x = 1,335,400.78 × 291,086
  4. Step 4: Simplify right side
    890,127.18x = 388,716,471,447.08
  5. Step 5: Solve for x
    x = 388,716,471,447.08/890,127.18
  6. Step 6: Final answer
    x = 436,697.68

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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.