Home / 1,087,812.86-1,631,719.28-413,738.46

Finding the Fourth Proportional to 1,087,812.86, 1,631,719.28 and 413,738.46

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Solution

The fourth proportional to 1,087,812.86, 1,631,719.28 and 413,738.46 is: 620,607.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,812.86 : 1,631,719.28 = 413,738.46 : x
  2. Step 2: Convert to fraction form
    1,087,812.86/1,631,719.28 = 413,738.46/x
  3. Step 3: Cross multiply
    1,087,812.86x = 1,631,719.28 × 413,738.46
  4. Step 4: Simplify right side
    1,087,812.86x = 675,105,023,093.86
  5. Step 5: Solve for x
    x = 675,105,023,093.86/1,087,812.86
  6. Step 6: Final answer
    x = 620,607.69

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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.