Home / 1,289,342.42-1,931,356.10-755,244.21

Finding the Fourth Proportional to 1,289,342.42, 1,931,356.10 and 755,244.21

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Solution

The fourth proportional to 1,289,342.42, 1,931,356.10 and 755,244.21 is: 1,131,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,342.42 : 1,931,356.10 = 755,244.21 : x
  2. Step 2: Convert to fraction form
    1,289,342.42/1,931,356.10 = 755,244.21/x
  3. Step 3: Cross multiply
    1,289,342.42x = 1,931,356.10 × 755,244.21
  4. Step 4: Simplify right side
    1,289,342.42x = 1,458,645,508,196.96
  5. Step 5: Solve for x
    x = 1,458,645,508,196.96/1,289,342.42
  6. Step 6: Final answer
    x = 1,131,309.64

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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.