Home / 1,535,981.78-2,120,451.77-1,122,053.76

Finding the Fourth Proportional to 1,535,981.78, 2,120,451.77 and 1,122,053.76

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Solution

The fourth proportional to 1,535,981.78, 2,120,451.77 and 1,122,053.76 is: 1,549,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,981.78 : 2,120,451.77 = 1,122,053.76 : x
  2. Step 2: Convert to fraction form
    1,535,981.78/2,120,451.77 = 1,122,053.76/x
  3. Step 3: Cross multiply
    1,535,981.78x = 2,120,451.77 × 1,122,053.76
  4. Step 4: Simplify right side
    1,535,981.78x = 2,379,260,884,232.29
  5. Step 5: Solve for x
    x = 2,379,260,884,232.29/1,535,981.78
  6. Step 6: Final answer
    x = 1,549,016.34

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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.