Home / 829,155.80-1,144,858.66-815,913.86

Finding the Fourth Proportional to 829,155.80, 1,144,858.66 and 815,913.86

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Solution

The fourth proportional to 829,155.80, 1,144,858.66 and 815,913.86 is: 1,126,574.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,155.80 : 1,144,858.66 = 815,913.86 : x
  2. Step 2: Convert to fraction form
    829,155.80/1,144,858.66 = 815,913.86/x
  3. Step 3: Cross multiply
    829,155.80x = 1,144,858.66 × 815,913.86
  4. Step 4: Simplify right side
    829,155.80x = 934,106,040,670.95
  5. Step 5: Solve for x
    x = 934,106,040,670.95/829,155.80
  6. Step 6: Final answer
    x = 1,126,574.81

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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.