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Finding the Fourth Proportional to 559,937.16, 772,716.96 and 305,292.60

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Solution

The fourth proportional to 559,937.16, 772,716.96 and 305,292.60 is: 421,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,937.16 : 772,716.96 = 305,292.60 : x
  2. Step 2: Convert to fraction form
    559,937.16/772,716.96 = 305,292.60/x
  3. Step 3: Cross multiply
    559,937.16x = 772,716.96 × 305,292.60
  4. Step 4: Simplify right side
    559,937.16x = 235,904,769,782.50
  5. Step 5: Solve for x
    x = 235,904,769,782.50/559,937.16
  6. Step 6: Final answer
    x = 421,305.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.