Home / 809,460.82-1,213,979.57-240,688.74

Finding the Fourth Proportional to 809,460.82, 1,213,979.57 and 240,688.74

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Solution

The fourth proportional to 809,460.82, 1,213,979.57 and 240,688.74 is: 360,970.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,460.82 : 1,213,979.57 = 240,688.74 : x
  2. Step 2: Convert to fraction form
    809,460.82/1,213,979.57 = 240,688.74/x
  3. Step 3: Cross multiply
    809,460.82x = 1,213,979.57 × 240,688.74
  4. Step 4: Simplify right side
    809,460.82x = 292,191,205,815.70
  5. Step 5: Solve for x
    x = 292,191,205,815.70/809,460.82
  6. Step 6: Final answer
    x = 360,970.17

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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.