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Finding the Fourth Proportional to 558,151.20, 835,477.20 and 400,687.20

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Solution

The fourth proportional to 558,151.20, 835,477.20 and 400,687.20 is: 599,774.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,151.20 : 835,477.20 = 400,687.20 : x
  2. Step 2: Convert to fraction form
    558,151.20/835,477.20 = 400,687.20/x
  3. Step 3: Cross multiply
    558,151.20x = 835,477.20 × 400,687.20
  4. Step 4: Simplify right side
    558,151.20x = 334,765,019,931.84
  5. Step 5: Solve for x
    x = 334,765,019,931.84/558,151.20
  6. Step 6: Final answer
    x = 599,774.79

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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.