Home / 680,262.98-1,020,041.51-200,428.49

Finding the Fourth Proportional to 680,262.98, 1,020,041.51 and 200,428.49

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Solution

The fourth proportional to 680,262.98, 1,020,041.51 and 200,428.49 is: 300,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,262.98 : 1,020,041.51 = 200,428.49 : x
  2. Step 2: Convert to fraction form
    680,262.98/1,020,041.51 = 200,428.49/x
  3. Step 3: Cross multiply
    680,262.98x = 1,020,041.51 × 200,428.49
  4. Step 4: Simplify right side
    680,262.98x = 204,445,381,134.58
  5. Step 5: Solve for x
    x = 204,445,381,134.58/680,262.98
  6. Step 6: Final answer
    x = 300,538.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.