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Finding the Fourth Proportional to 437,569.30, 655,369.80 and 260,422.30

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Solution

The fourth proportional to 437,569.30, 655,369.80 and 260,422.30 is: 390,047.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,569.30 : 655,369.80 = 260,422.30 : x
  2. Step 2: Convert to fraction form
    437,569.30/655,369.80 = 260,422.30/x
  3. Step 3: Cross multiply
    437,569.30x = 655,369.80 × 260,422.30
  4. Step 4: Simplify right side
    437,569.30x = 170,672,910,666.54
  5. Step 5: Solve for x
    x = 170,672,910,666.54/437,569.30
  6. Step 6: Final answer
    x = 390,047.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.