Home / 712,225.67-982,834.08-389,874.02

Finding the Fourth Proportional to 712,225.67, 982,834.08 and 389,874.02

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Solution

The fourth proportional to 712,225.67, 982,834.08 and 389,874.02 is: 538,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,225.67 : 982,834.08 = 389,874.02 : x
  2. Step 2: Convert to fraction form
    712,225.67/982,834.08 = 389,874.02/x
  3. Step 3: Cross multiply
    712,225.67x = 982,834.08 × 389,874.02
  4. Step 4: Simplify right side
    712,225.67x = 383,181,473,762.60
  5. Step 5: Solve for x
    x = 383,181,473,762.60/712,225.67
  6. Step 6: Final answer
    x = 538,005.71

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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.