Home / 1,358,234.78-1,873,955.24-814,172.05

Finding the Fourth Proportional to 1,358,234.78, 1,873,955.24 and 814,172.05

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Solution

The fourth proportional to 1,358,234.78, 1,873,955.24 and 814,172.05 is: 1,123,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,234.78 : 1,873,955.24 = 814,172.05 : x
  2. Step 2: Convert to fraction form
    1,358,234.78/1,873,955.24 = 814,172.05/x
  3. Step 3: Cross multiply
    1,358,234.78x = 1,873,955.24 × 814,172.05
  4. Step 4: Simplify right side
    1,358,234.78x = 1,525,721,970,603.29
  5. Step 5: Solve for x
    x = 1,525,721,970,603.29/1,358,234.78
  6. Step 6: Final answer
    x = 1,123,312.40

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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.