Home / 1,055,421.89-1,583,134.15-256,697.90

Finding the Fourth Proportional to 1,055,421.89, 1,583,134.15 and 256,697.90

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Solution

The fourth proportional to 1,055,421.89, 1,583,134.15 and 256,697.90 is: 385,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,421.89 : 1,583,134.15 = 256,697.90 : x
  2. Step 2: Convert to fraction form
    1,055,421.89/1,583,134.15 = 256,697.90/x
  3. Step 3: Cross multiply
    1,055,421.89x = 1,583,134.15 × 256,697.90
  4. Step 4: Simplify right side
    1,055,421.89x = 406,387,211,723.29
  5. Step 5: Solve for x
    x = 406,387,211,723.29/1,055,421.89
  6. Step 6: Final answer
    x = 385,047.17

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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.