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Finding the Fourth Proportional to 1,045.68, 1,443.17 and 626.26

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Solution

The fourth proportional to 1,045.68, 1,443.17 and 626.26 is: 864.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.68 : 1,443.17 = 626.26 : x
  2. Step 2: Convert to fraction form
    1,045.68/1,443.17 = 626.26/x
  3. Step 3: Cross multiply
    1,045.68x = 1,443.17 × 626.26
  4. Step 4: Simplify right side
    1,045.68x = 903,799.64
  5. Step 5: Solve for x
    x = 903,799.64/1,045.68
  6. Step 6: Final answer
    x = 864.32

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1.5x scale

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.