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Finding the Fourth Proportional to 406,074, 560,636.28 and 260,938.56

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Solution

The fourth proportional to 406,074, 560,636.28 and 260,938.56 is: 360,258.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,074 : 560,636.28 = 260,938.56 : x
  2. Step 2: Convert to fraction form
    406,074/560,636.28 = 260,938.56/x
  3. Step 3: Cross multiply
    406,074x = 560,636.28 × 260,938.56
  4. Step 4: Simplify right side
    406,074x = 146,291,623,586.96
  5. Step 5: Solve for x
    x = 146,291,623,586.96/406,074
  6. Step 6: Final answer
    x = 360,258.53

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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.