Home / 853,230.98-1,280,123.16-254,197.28

Finding the Fourth Proportional to 853,230.98, 1,280,123.16 and 254,197.28

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Solution

The fourth proportional to 853,230.98, 1,280,123.16 and 254,197.28 is: 381,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,230.98 : 1,280,123.16 = 254,197.28 : x
  2. Step 2: Convert to fraction form
    853,230.98/1,280,123.16 = 254,197.28/x
  3. Step 3: Cross multiply
    853,230.98x = 1,280,123.16 × 254,197.28
  4. Step 4: Simplify right side
    853,230.98x = 325,403,825,337.01
  5. Step 5: Solve for x
    x = 325,403,825,337.01/853,230.98
  6. Step 6: Final answer
    x = 381,378.35

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Double scale
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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.