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Finding the Fourth Proportional to 492,613.50, 679,806.45 and 266,259

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Solution

The fourth proportional to 492,613.50, 679,806.45 and 266,259 is: 367,437.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,613.50 : 679,806.45 = 266,259 : x
  2. Step 2: Convert to fraction form
    492,613.50/679,806.45 = 266,259/x
  3. Step 3: Cross multiply
    492,613.50x = 679,806.45 × 266,259
  4. Step 4: Simplify right side
    492,613.50x = 181,004,585,570.55
  5. Step 5: Solve for x
    x = 181,004,585,570.55/492,613.50
  6. Step 6: Final answer
    x = 367,437.32

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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.