Home / 1,224,856.78-1,689,756.84-715,334.38

Finding the Fourth Proportional to 1,224,856.78, 1,689,756.84 and 715,334.38

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Solution

The fourth proportional to 1,224,856.78, 1,689,756.84 and 715,334.38 is: 986,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,856.78 : 1,689,756.84 = 715,334.38 : x
  2. Step 2: Convert to fraction form
    1,224,856.78/1,689,756.84 = 715,334.38/x
  3. Step 3: Cross multiply
    1,224,856.78x = 1,689,756.84 × 715,334.38
  4. Step 4: Simplify right side
    1,224,856.78x = 1,208,741,161,492.16
  5. Step 5: Solve for x
    x = 1,208,741,161,492.16/1,224,856.78
  6. Step 6: Final answer
    x = 986,842.85

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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.