Home / 853,923.13-1,280,840.95-254,889.25

Finding the Fourth Proportional to 853,923.13, 1,280,840.95 and 254,889.25

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Solution

The fourth proportional to 853,923.13, 1,280,840.95 and 254,889.25 is: 382,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,923.13 : 1,280,840.95 = 254,889.25 : x
  2. Step 2: Convert to fraction form
    853,923.13/1,280,840.95 = 254,889.25/x
  3. Step 3: Cross multiply
    853,923.13x = 1,280,840.95 × 254,889.25
  4. Step 4: Simplify right side
    853,923.13x = 326,472,586,231.30
  5. Step 5: Solve for x
    x = 326,472,586,231.30/853,923.13
  6. Step 6: Final answer
    x = 382,320.82

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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.