Home / 867,935.60-1,302,671.40-512,505.20

Finding the Fourth Proportional to 867,935.60, 1,302,671.40 and 512,505.20

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Solution

The fourth proportional to 867,935.60, 1,302,671.40 and 512,505.20 is: 769,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,935.60 : 1,302,671.40 = 512,505.20 : x
  2. Step 2: Convert to fraction form
    867,935.60/1,302,671.40 = 512,505.20/x
  3. Step 3: Cross multiply
    867,935.60x = 1,302,671.40 × 512,505.20
  4. Step 4: Simplify right side
    867,935.60x = 667,625,866,391.28
  5. Step 5: Solve for x
    x = 667,625,866,391.28/867,935.60
  6. Step 6: Final answer
    x = 769,211.29

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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.