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Finding the Fourth Proportional to 659,335.17, 989,180.29 and 339,312.68

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Solution

The fourth proportional to 659,335.17, 989,180.29 and 339,312.68 is: 509,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,335.17 : 989,180.29 = 339,312.68 : x
  2. Step 2: Convert to fraction form
    659,335.17/989,180.29 = 339,312.68/x
  3. Step 3: Cross multiply
    659,335.17x = 989,180.29 × 339,312.68
  4. Step 4: Simplify right side
    659,335.17x = 335,641,410,257.18
  5. Step 5: Solve for x
    x = 335,641,410,257.18/659,335.17
  6. Step 6: Final answer
    x = 509,060.38

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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.