Home / 886,440.81-1,329,871.82-287,402.43

Finding the Fourth Proportional to 886,440.81, 1,329,871.82 and 287,402.43

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Solution

The fourth proportional to 886,440.81, 1,329,871.82 and 287,402.43 is: 431,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,440.81 : 1,329,871.82 = 287,402.43 : x
  2. Step 2: Convert to fraction form
    886,440.81/1,329,871.82 = 287,402.43/x
  3. Step 3: Cross multiply
    886,440.81x = 1,329,871.82 × 287,402.43
  4. Step 4: Simplify right side
    886,440.81x = 382,208,391,219.51
  5. Step 5: Solve for x
    x = 382,208,391,219.51/886,440.81
  6. Step 6: Final answer
    x = 431,171.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.