Home / 743,014.56-1,025,364-420,787.38

Finding the Fourth Proportional to 743,014.56, 1,025,364 and 420,787.38

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Solution

The fourth proportional to 743,014.56, 1,025,364 and 420,787.38 is: 580,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,014.56 : 1,025,364 = 420,787.38 : x
  2. Step 2: Convert to fraction form
    743,014.56/1,025,364 = 420,787.38/x
  3. Step 3: Cross multiply
    743,014.56x = 1,025,364 × 420,787.38
  4. Step 4: Simplify right side
    743,014.56x = 431,460,231,106.32
  5. Step 5: Solve for x
    x = 431,460,231,106.32/743,014.56
  6. Step 6: Final answer
    x = 580,688.80

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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.