Home / 950,865.78-1,312,135.29-521,115.42

Finding the Fourth Proportional to 950,865.78, 1,312,135.29 and 521,115.42

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Solution

The fourth proportional to 950,865.78, 1,312,135.29 and 521,115.42 is: 719,106.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,865.78 : 1,312,135.29 = 521,115.42 : x
  2. Step 2: Convert to fraction form
    950,865.78/1,312,135.29 = 521,115.42/x
  3. Step 3: Cross multiply
    950,865.78x = 1,312,135.29 × 521,115.42
  4. Step 4: Simplify right side
    950,865.78x = 683,773,932,745.17
  5. Step 5: Solve for x
    x = 683,773,932,745.17/950,865.78
  6. Step 6: Final answer
    x = 719,106.68

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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.