Home / 648,839.31-895,379.67-358,446.26

Finding the Fourth Proportional to 648,839.31, 895,379.67 and 358,446.26

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Solution

The fourth proportional to 648,839.31, 895,379.67 and 358,446.26 is: 494,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,839.31 : 895,379.67 = 358,446.26 : x
  2. Step 2: Convert to fraction form
    648,839.31/895,379.67 = 358,446.26/x
  3. Step 3: Cross multiply
    648,839.31x = 895,379.67 × 358,446.26
  4. Step 4: Simplify right side
    648,839.31x = 320,945,496,229.98
  5. Step 5: Solve for x
    x = 320,945,496,229.98/648,839.31
  6. Step 6: Final answer
    x = 494,645.58

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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.