Home / 788,504.83-1,088,137.11-425,928.70

Finding the Fourth Proportional to 788,504.83, 1,088,137.11 and 425,928.70

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Solution

The fourth proportional to 788,504.83, 1,088,137.11 and 425,928.70 is: 587,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,504.83 : 1,088,137.11 = 425,928.70 : x
  2. Step 2: Convert to fraction form
    788,504.83/1,088,137.11 = 425,928.70/x
  3. Step 3: Cross multiply
    788,504.83x = 1,088,137.11 × 425,928.70
  4. Step 4: Simplify right side
    788,504.83x = 463,468,824,684.06
  5. Step 5: Solve for x
    x = 463,468,824,684.06/788,504.83
  6. Step 6: Final answer
    x = 587,781.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.