Home / 648,786.31-895,350.44-358,412.85

Finding the Fourth Proportional to 648,786.31, 895,350.44 and 358,412.85

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Solution

The fourth proportional to 648,786.31, 895,350.44 and 358,412.85 is: 494,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,786.31 : 895,350.44 = 358,412.85 : x
  2. Step 2: Convert to fraction form
    648,786.31/895,350.44 = 358,412.85/x
  3. Step 3: Cross multiply
    648,786.31x = 895,350.44 × 358,412.85
  4. Step 4: Simplify right side
    648,786.31x = 320,905,103,845.19
  5. Step 5: Solve for x
    x = 320,905,103,845.19/648,786.31
  6. Step 6: Final answer
    x = 494,623.73

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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.