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Finding the Fourth Proportional to 480,847.40, 663,565.38 and 265,985

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Solution

The fourth proportional to 480,847.40, 663,565.38 and 265,985 is: 367,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,847.40 : 663,565.38 = 265,985 : x
  2. Step 2: Convert to fraction form
    480,847.40/663,565.38 = 265,985/x
  3. Step 3: Cross multiply
    480,847.40x = 663,565.38 × 265,985
  4. Step 4: Simplify right side
    480,847.40x = 176,498,437,599.30
  5. Step 5: Solve for x
    x = 176,498,437,599.30/480,847.40
  6. Step 6: Final answer
    x = 367,057.07

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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.