Home / 787,010.92-1,179,815.10-288,258.28

Finding the Fourth Proportional to 787,010.92, 1,179,815.10 and 288,258.28

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Solution

The fourth proportional to 787,010.92, 1,179,815.10 and 288,258.28 is: 432,130.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,010.92 : 1,179,815.10 = 288,258.28 : x
  2. Step 2: Convert to fraction form
    787,010.92/1,179,815.10 = 288,258.28/x
  3. Step 3: Cross multiply
    787,010.92x = 1,179,815.10 × 288,258.28
  4. Step 4: Simplify right side
    787,010.92x = 340,091,471,444.03
  5. Step 5: Solve for x
    x = 340,091,471,444.03/787,010.92
  6. Step 6: Final answer
    x = 432,130.56

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Double scale
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Similar ratio
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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.