Home / 1,218,561.32-1,681,085.22-734,857.68

Finding the Fourth Proportional to 1,218,561.32, 1,681,085.22 and 734,857.68

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Solution

The fourth proportional to 1,218,561.32, 1,681,085.22 and 734,857.68 is: 1,013,784.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,561.32 : 1,681,085.22 = 734,857.68 : x
  2. Step 2: Convert to fraction form
    1,218,561.32/1,681,085.22 = 734,857.68/x
  3. Step 3: Cross multiply
    1,218,561.32x = 1,681,085.22 × 734,857.68
  4. Step 4: Simplify right side
    1,218,561.32x = 1,235,358,384,651.49
  5. Step 5: Solve for x
    x = 1,235,358,384,651.49/1,218,561.32
  6. Step 6: Final answer
    x = 1,013,784.34

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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.