Home / 684,454.35-1,025,957.54-257,805.57

Finding the Fourth Proportional to 684,454.35, 1,025,957.54 and 257,805.57

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Solution

The fourth proportional to 684,454.35, 1,025,957.54 and 257,805.57 is: 386,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,454.35 : 1,025,957.54 = 257,805.57 : x
  2. Step 2: Convert to fraction form
    684,454.35/1,025,957.54 = 257,805.57/x
  3. Step 3: Cross multiply
    684,454.35x = 1,025,957.54 × 257,805.57
  4. Step 4: Simplify right side
    684,454.35x = 264,497,567,106.47
  5. Step 5: Solve for x
    x = 264,497,567,106.47/684,454.35
  6. Step 6: Final answer
    x = 386,435.66

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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.