Home / 680,488.29-1,020,735.32-275,688.38

Finding the Fourth Proportional to 680,488.29, 1,020,735.32 and 275,688.38

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Solution

The fourth proportional to 680,488.29, 1,020,735.32 and 275,688.38 is: 413,533.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,488.29 : 1,020,735.32 = 275,688.38 : x
  2. Step 2: Convert to fraction form
    680,488.29/1,020,735.32 = 275,688.38/x
  3. Step 3: Cross multiply
    680,488.29x = 1,020,735.32 × 275,688.38
  4. Step 4: Simplify right side
    680,488.29x = 281,404,867,952.98
  5. Step 5: Solve for x
    x = 281,404,867,952.98/680,488.29
  6. Step 6: Final answer
    x = 413,533.74

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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.