Home / 782,300.46-1,079,537.31-480,436.14

Finding the Fourth Proportional to 782,300.46, 1,079,537.31 and 480,436.14

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Solution

The fourth proportional to 782,300.46, 1,079,537.31 and 480,436.14 is: 662,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,300.46 : 1,079,537.31 = 480,436.14 : x
  2. Step 2: Convert to fraction form
    782,300.46/1,079,537.31 = 480,436.14/x
  3. Step 3: Cross multiply
    782,300.46x = 1,079,537.31 × 480,436.14
  4. Step 4: Simplify right side
    782,300.46x = 518,648,738,202.38
  5. Step 5: Solve for x
    x = 518,648,738,202.38/782,300.46
  6. Step 6: Final answer
    x = 662,978.95

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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.