Home / 946,478.78-1,306,169.44-538,639.22

Finding the Fourth Proportional to 946,478.78, 1,306,169.44 and 538,639.22

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Solution

The fourth proportional to 946,478.78, 1,306,169.44 and 538,639.22 is: 743,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,478.78 : 1,306,169.44 = 538,639.22 : x
  2. Step 2: Convert to fraction form
    946,478.78/1,306,169.44 = 538,639.22/x
  3. Step 3: Cross multiply
    946,478.78x = 1,306,169.44 × 538,639.22
  4. Step 4: Simplify right side
    946,478.78x = 703,554,088,349.44
  5. Step 5: Solve for x
    x = 703,554,088,349.44/946,478.78
  6. Step 6: Final answer
    x = 743,338.47

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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.