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Finding the Fourth Proportional to 492,730.75, 679,970.06 and 266,377.87

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Solution

The fourth proportional to 492,730.75, 679,970.06 and 266,377.87 is: 367,602.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,730.75 : 679,970.06 = 266,377.87 : x
  2. Step 2: Convert to fraction form
    492,730.75/679,970.06 = 266,377.87/x
  3. Step 3: Cross multiply
    492,730.75x = 679,970.06 × 266,377.87
  4. Step 4: Simplify right side
    492,730.75x = 181,128,976,246.57
  5. Step 5: Solve for x
    x = 181,128,976,246.57/492,730.75
  6. Step 6: Final answer
    x = 367,602.34

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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.