Home / 755,276.65-1,132,915.02-256,640.65

Finding the Fourth Proportional to 755,276.65, 1,132,915.02 and 256,640.65

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Solution

The fourth proportional to 755,276.65, 1,132,915.02 and 256,640.65 is: 384,960.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,276.65 : 1,132,915.02 = 256,640.65 : x
  2. Step 2: Convert to fraction form
    755,276.65/1,132,915.02 = 256,640.65/x
  3. Step 3: Cross multiply
    755,276.65x = 1,132,915.02 × 256,640.65
  4. Step 4: Simplify right side
    755,276.65x = 290,752,040,179.79
  5. Step 5: Solve for x
    x = 290,752,040,179.79/755,276.65
  6. Step 6: Final answer
    x = 384,960.98

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1.5x scale

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.