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Finding the Fourth Proportional to 638,550.34, 881,206.34 and 348,159.52

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Solution

The fourth proportional to 638,550.34, 881,206.34 and 348,159.52 is: 480,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,550.34 : 881,206.34 = 348,159.52 : x
  2. Step 2: Convert to fraction form
    638,550.34/881,206.34 = 348,159.52/x
  3. Step 3: Cross multiply
    638,550.34x = 881,206.34 × 348,159.52
  4. Step 4: Simplify right side
    638,550.34x = 306,800,372,717.68
  5. Step 5: Solve for x
    x = 306,800,372,717.68/638,550.34
  6. Step 6: Final answer
    x = 480,463.88

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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.