Home / 758.03-1,045.98-426.40

Finding the Fourth Proportional to 758.03, 1,045.98 and 426.40

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Solution

The fourth proportional to 758.03, 1,045.98 and 426.40 is: 588.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.03 : 1,045.98 = 426.40 : x
  2. Step 2: Convert to fraction form
    758.03/1,045.98 = 426.40/x
  3. Step 3: Cross multiply
    758.03x = 1,045.98 × 426.40
  4. Step 4: Simplify right side
    758.03x = 446,003.26
  5. Step 5: Solve for x
    x = 446,003.26/758.03
  6. Step 6: Final answer
    x = 588.38

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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.