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Finding the Fourth Proportional to 450,808.65, 675,139.50 and 260,868.60

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Solution

The fourth proportional to 450,808.65, 675,139.50 and 260,868.60 is: 390,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,808.65 : 675,139.50 = 260,868.60 : x
  2. Step 2: Convert to fraction form
    450,808.65/675,139.50 = 260,868.60/x
  3. Step 3: Cross multiply
    450,808.65x = 675,139.50 × 260,868.60
  4. Step 4: Simplify right side
    450,808.65x = 176,122,696,169.70
  5. Step 5: Solve for x
    x = 176,122,696,169.70/450,808.65
  6. Step 6: Final answer
    x = 390,681.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.