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Finding the Fourth Proportional to 461,023.20, 636,260.40 and 347,666.40

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Solution

The fourth proportional to 461,023.20, 636,260.40 and 347,666.40 is: 479,816.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,023.20 : 636,260.40 = 347,666.40 : x
  2. Step 2: Convert to fraction form
    461,023.20/636,260.40 = 347,666.40/x
  3. Step 3: Cross multiply
    461,023.20x = 636,260.40 × 347,666.40
  4. Step 4: Simplify right side
    461,023.20x = 221,206,362,730.56
  5. Step 5: Solve for x
    x = 221,206,362,730.56/461,023.20
  6. Step 6: Final answer
    x = 479,816.12

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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.