Home / 712,231-982,878.33-389,941.01

Finding the Fourth Proportional to 712,231, 982,878.33 and 389,941.01

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Solution

The fourth proportional to 712,231, 982,878.33 and 389,941.01 is: 538,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,231 : 982,878.33 = 389,941.01 : x
  2. Step 2: Convert to fraction form
    712,231/982,878.33 = 389,941.01/x
  3. Step 3: Cross multiply
    712,231x = 982,878.33 × 389,941.01
  4. Step 4: Simplify right side
    712,231x = 383,264,568,707.31
  5. Step 5: Solve for x
    x = 383,264,568,707.31/712,231
  6. Step 6: Final answer
    x = 538,118.35

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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.