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Finding the Fourth Proportional to 492,660.80, 679,871.58 and 266,306.30

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Solution

The fourth proportional to 492,660.80, 679,871.58 and 266,306.30 is: 367,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,660.80 : 679,871.58 = 266,306.30 : x
  2. Step 2: Convert to fraction form
    492,660.80/679,871.58 = 266,306.30/x
  3. Step 3: Cross multiply
    492,660.80x = 679,871.58 × 266,306.30
  4. Step 4: Simplify right side
    492,660.80x = 181,054,083,096.47
  5. Step 5: Solve for x
    x = 181,054,083,096.47/492,660.80
  6. Step 6: Final answer
    x = 367,502.52

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1.5x scale

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.