Home / 1,160,120.86-1,600,942.68-643,844.77

Finding the Fourth Proportional to 1,160,120.86, 1,600,942.68 and 643,844.77

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Solution

The fourth proportional to 1,160,120.86, 1,600,942.68 and 643,844.77 is: 888,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,120.86 : 1,600,942.68 = 643,844.77 : x
  2. Step 2: Convert to fraction form
    1,160,120.86/1,600,942.68 = 643,844.77/x
  3. Step 3: Cross multiply
    1,160,120.86x = 1,600,942.68 × 643,844.77
  4. Step 4: Simplify right side
    1,160,120.86x = 1,030,758,567,585.43
  5. Step 5: Solve for x
    x = 1,030,758,567,585.43/1,160,120.86
  6. Step 6: Final answer
    x = 888,492.40

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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.