Home / 639,276.31-958,665.16-239,699.35

Finding the Fourth Proportional to 639,276.31, 958,665.16 and 239,699.35

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Solution

The fourth proportional to 639,276.31, 958,665.16 and 239,699.35 is: 359,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,276.31 : 958,665.16 = 239,699.35 : x
  2. Step 2: Convert to fraction form
    639,276.31/958,665.16 = 239,699.35/x
  3. Step 3: Cross multiply
    639,276.31x = 958,665.16 × 239,699.35
  4. Step 4: Simplify right side
    639,276.31x = 229,791,415,719.65
  5. Step 5: Solve for x
    x = 229,791,415,719.65/639,276.31
  6. Step 6: Final answer
    x = 359,455.55

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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.