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Finding the Fourth Proportional to 1,046.61, 1,444.71 and 898.65

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Solution

The fourth proportional to 1,046.61, 1,444.71 and 898.65 is: 1,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.61 : 1,444.71 = 898.65 : x
  2. Step 2: Convert to fraction form
    1,046.61/1,444.71 = 898.65/x
  3. Step 3: Cross multiply
    1,046.61x = 1,444.71 × 898.65
  4. Step 4: Simplify right side
    1,046.61x = 1,298,288.64
  5. Step 5: Solve for x
    x = 1,298,288.64/1,046.61
  6. Step 6: Final answer
    x = 1,240.47

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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.