Home / 712,229-982,875.57-389,939.01

Finding the Fourth Proportional to 712,229, 982,875.57 and 389,939.01

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Solution

The fourth proportional to 712,229, 982,875.57 and 389,939.01 is: 538,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,229 : 982,875.57 = 389,939.01 : x
  2. Step 2: Convert to fraction form
    712,229/982,875.57 = 389,939.01/x
  3. Step 3: Cross multiply
    712,229x = 982,875.57 × 389,939.01
  4. Step 4: Simplify right side
    712,229x = 383,261,526,718.99
  5. Step 5: Solve for x
    x = 383,261,526,718.99/712,229
  6. Step 6: Final answer
    x = 538,115.59

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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.