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Finding the Fourth Proportional to 480,636.69, 663,265.49 and 265,769.40

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Solution

The fourth proportional to 480,636.69, 663,265.49 and 265,769.40 is: 366,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,636.69 : 663,265.49 = 265,769.40 : x
  2. Step 2: Convert to fraction form
    480,636.69/663,265.49 = 265,769.40/x
  3. Step 3: Cross multiply
    480,636.69x = 663,265.49 × 265,769.40
  4. Step 4: Simplify right side
    480,636.69x = 176,275,671,318.01
  5. Step 5: Solve for x
    x = 176,275,671,318.01/480,636.69
  6. Step 6: Final answer
    x = 366,754.50

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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.