Home / 712,182.94-982,812.39-389,892.04

Finding the Fourth Proportional to 712,182.94, 982,812.39 and 389,892.04

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Solution

The fourth proportional to 712,182.94, 982,812.39 and 389,892.04 is: 538,050.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,182.94 : 982,812.39 = 389,892.04 : x
  2. Step 2: Convert to fraction form
    712,182.94/982,812.39 = 389,892.04/x
  3. Step 3: Cross multiply
    712,182.94x = 982,812.39 × 389,892.04
  4. Step 4: Simplify right side
    712,182.94x = 383,190,727,674.38
  5. Step 5: Solve for x
    x = 383,190,727,674.38/712,182.94
  6. Step 6: Final answer
    x = 538,050.98

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1.5x scale

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.