Home / 1,000,876.82-1,381,308.80-571,221.23

Finding the Fourth Proportional to 1,000,876.82, 1,381,308.80 and 571,221.23

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Solution

The fourth proportional to 1,000,876.82, 1,381,308.80 and 571,221.23 is: 788,341.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,876.82 : 1,381,308.80 = 571,221.23 : x
  2. Step 2: Convert to fraction form
    1,000,876.82/1,381,308.80 = 571,221.23/x
  3. Step 3: Cross multiply
    1,000,876.82x = 1,381,308.80 × 571,221.23
  4. Step 4: Simplify right side
    1,000,876.82x = 789,032,901,983.17
  5. Step 5: Solve for x
    x = 789,032,901,983.17/1,000,876.82
  6. Step 6: Final answer
    x = 788,341.67

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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.