Home / 901,420.10-1,243,959.14-493,521.84

Finding the Fourth Proportional to 901,420.10, 1,243,959.14 and 493,521.84

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Solution

The fourth proportional to 901,420.10, 1,243,959.14 and 493,521.84 is: 681,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,420.10 : 1,243,959.14 = 493,521.84 : x
  2. Step 2: Convert to fraction form
    901,420.10/1,243,959.14 = 493,521.84/x
  3. Step 3: Cross multiply
    901,420.10x = 1,243,959.14 × 493,521.84
  4. Step 4: Simplify right side
    901,420.10x = 613,921,004,891.42
  5. Step 5: Solve for x
    x = 613,921,004,891.42/901,420.10
  6. Step 6: Final answer
    x = 681,059.81

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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.