Home / 1,345,205.08-1,855,332.66-861,814.84

Finding the Fourth Proportional to 1,345,205.08, 1,855,332.66 and 861,814.84

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Solution

The fourth proportional to 1,345,205.08, 1,855,332.66 and 861,814.84 is: 1,188,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,205.08 : 1,855,332.66 = 861,814.84 : x
  2. Step 2: Convert to fraction form
    1,345,205.08/1,855,332.66 = 861,814.84/x
  3. Step 3: Cross multiply
    1,345,205.08x = 1,855,332.66 × 861,814.84
  4. Step 4: Simplify right side
    1,345,205.08x = 1,598,953,219,524.67
  5. Step 5: Solve for x
    x = 1,598,953,219,524.67/1,345,205.08
  6. Step 6: Final answer
    x = 1,188,631.57

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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.