Home / 1,438,677.44-1,985,344.20-785,281.76

Finding the Fourth Proportional to 1,438,677.44, 1,985,344.20 and 785,281.76

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Solution

The fourth proportional to 1,438,677.44, 1,985,344.20 and 785,281.76 is: 1,083,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,677.44 : 1,985,344.20 = 785,281.76 : x
  2. Step 2: Convert to fraction form
    1,438,677.44/1,985,344.20 = 785,281.76/x
  3. Step 3: Cross multiply
    1,438,677.44x = 1,985,344.20 × 785,281.76
  4. Step 4: Simplify right side
    1,438,677.44x = 1,559,054,587,581.79
  5. Step 5: Solve for x
    x = 1,559,054,587,581.79/1,438,677.44
  6. Step 6: Final answer
    x = 1,083,672.09

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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.