Home / 1,642,647.89-2,266,830.20-917,505.92

Finding the Fourth Proportional to 1,642,647.89, 2,266,830.20 and 917,505.92

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Solution

The fourth proportional to 1,642,647.89, 2,266,830.20 and 917,505.92 is: 1,266,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,647.89 : 2,266,830.20 = 917,505.92 : x
  2. Step 2: Convert to fraction form
    1,642,647.89/2,266,830.20 = 917,505.92/x
  3. Step 3: Cross multiply
    1,642,647.89x = 2,266,830.20 × 917,505.92
  4. Step 4: Simplify right side
    1,642,647.89x = 2,079,830,112,213.10
  5. Step 5: Solve for x
    x = 2,079,830,112,213.10/1,642,647.89
  6. Step 6: Final answer
    x = 1,266,144.82

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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.