Home / 1,121,645.32-1,547,811.96-612,249.28

Finding the Fourth Proportional to 1,121,645.32, 1,547,811.96 and 612,249.28

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Solution

The fourth proportional to 1,121,645.32, 1,547,811.96 and 612,249.28 is: 844,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,645.32 : 1,547,811.96 = 612,249.28 : x
  2. Step 2: Convert to fraction form
    1,121,645.32/1,547,811.96 = 612,249.28/x
  3. Step 3: Cross multiply
    1,121,645.32x = 1,547,811.96 × 612,249.28
  4. Step 4: Simplify right side
    1,121,645.32x = 947,646,758,085.39
  5. Step 5: Solve for x
    x = 947,646,758,085.39/1,121,645.32
  6. Step 6: Final answer
    x = 844,872.03

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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.