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Finding the Fourth Proportional to 492,659.84, 679,870.78 and 266,305.34

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Solution

The fourth proportional to 492,659.84, 679,870.78 and 266,305.34 is: 367,501.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,659.84 : 679,870.78 = 266,305.34 : x
  2. Step 2: Convert to fraction form
    492,659.84/679,870.78 = 266,305.34/x
  3. Step 3: Cross multiply
    492,659.84x = 679,870.78 × 266,305.34
  4. Step 4: Simplify right side
    492,659.84x = 181,053,219,223.97
  5. Step 5: Solve for x
    x = 181,053,219,223.97/492,659.84
  6. Step 6: Final answer
    x = 367,501.48

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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.