Home / 776,453.78-1,071,290.68-500,694.95

Finding the Fourth Proportional to 776,453.78, 1,071,290.68 and 500,694.95

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Solution

The fourth proportional to 776,453.78, 1,071,290.68 and 500,694.95 is: 690,820.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,453.78 : 1,071,290.68 = 500,694.95 : x
  2. Step 2: Convert to fraction form
    776,453.78/1,071,290.68 = 500,694.95/x
  3. Step 3: Cross multiply
    776,453.78x = 1,071,290.68 × 500,694.95
  4. Step 4: Simplify right side
    776,453.78x = 536,389,832,744.82
  5. Step 5: Solve for x
    x = 536,389,832,744.82/776,453.78
  6. Step 6: Final answer
    x = 690,820.04

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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.