Home / 913,131.52-1,260,158.68-505,226.76

Finding the Fourth Proportional to 913,131.52, 1,260,158.68 and 505,226.76

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Solution

The fourth proportional to 913,131.52, 1,260,158.68 and 505,226.76 is: 697,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,131.52 : 1,260,158.68 = 505,226.76 : x
  2. Step 2: Convert to fraction form
    913,131.52/1,260,158.68 = 505,226.76/x
  3. Step 3: Cross multiply
    913,131.52x = 1,260,158.68 × 505,226.76
  4. Step 4: Simplify right side
    913,131.52x = 636,665,886,982.28
  5. Step 5: Solve for x
    x = 636,665,886,982.28/913,131.52
  6. Step 6: Final answer
    x = 697,233.50

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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.