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Finding the Fourth Proportional to 436,947.30, 655,420.95 and 296,979.30

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Solution

The fourth proportional to 436,947.30, 655,420.95 and 296,979.30 is: 445,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,947.30 : 655,420.95 = 296,979.30 : x
  2. Step 2: Convert to fraction form
    436,947.30/655,420.95 = 296,979.30/x
  3. Step 3: Cross multiply
    436,947.30x = 655,420.95 × 296,979.30
  4. Step 4: Simplify right side
    436,947.30x = 194,646,454,936.34
  5. Step 5: Solve for x
    x = 194,646,454,936.34/436,947.30
  6. Step 6: Final answer
    x = 445,468.95

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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.