Home / 642,466.33-886,642.73-370,529.28

Finding the Fourth Proportional to 642,466.33, 886,642.73 and 370,529.28

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Solution

The fourth proportional to 642,466.33, 886,642.73 and 370,529.28 is: 511,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,466.33 : 886,642.73 = 370,529.28 : x
  2. Step 2: Convert to fraction form
    642,466.33/886,642.73 = 370,529.28/x
  3. Step 3: Cross multiply
    642,466.33x = 886,642.73 × 370,529.28
  4. Step 4: Simplify right side
    642,466.33x = 328,527,093,290.46
  5. Step 5: Solve for x
    x = 328,527,093,290.46/642,466.33
  6. Step 6: Final answer
    x = 511,353.01

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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.