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Finding the Fourth Proportional to 480,738.43, 663,415.68 and 265,870.54

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Solution

The fourth proportional to 480,738.43, 663,415.68 and 265,870.54 is: 366,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,738.43 : 663,415.68 = 265,870.54 : x
  2. Step 2: Convert to fraction form
    480,738.43/663,415.68 = 265,870.54/x
  3. Step 3: Cross multiply
    480,738.43x = 663,415.68 × 265,870.54
  4. Step 4: Simplify right side
    480,738.43x = 176,382,685,086.07
  5. Step 5: Solve for x
    x = 176,382,685,086.07/480,738.43
  6. Step 6: Final answer
    x = 366,899.49

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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.