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Finding the Fourth Proportional to 480,507.45, 663,071.78 and 265,634.70

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Solution

The fourth proportional to 480,507.45, 663,071.78 and 265,634.70 is: 366,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,507.45 : 663,071.78 = 265,634.70 : x
  2. Step 2: Convert to fraction form
    480,507.45/663,071.78 = 265,634.70/x
  3. Step 3: Cross multiply
    480,507.45x = 663,071.78 × 265,634.70
  4. Step 4: Simplify right side
    480,507.45x = 176,134,871,037.00
  5. Step 5: Solve for x
    x = 176,134,871,037.00/480,507.45
  6. Step 6: Final answer
    x = 366,560.13

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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.