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Finding the Fourth Proportional to 558,319.60, 770,443.14 and 303,665.32

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Solution

The fourth proportional to 558,319.60, 770,443.14 and 303,665.32 is: 419,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,319.60 : 770,443.14 = 303,665.32 : x
  2. Step 2: Convert to fraction form
    558,319.60/770,443.14 = 303,665.32/x
  3. Step 3: Cross multiply
    558,319.60x = 770,443.14 × 303,665.32
  4. Step 4: Simplify right side
    558,319.60x = 233,956,862,649.91
  5. Step 5: Solve for x
    x = 233,956,862,649.91/558,319.60
  6. Step 6: Final answer
    x = 419,037.52

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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.