Home / 712,523.08-983,288.42-486,163.72

Finding the Fourth Proportional to 712,523.08, 983,288.42 and 486,163.72

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Solution

The fourth proportional to 712,523.08, 983,288.42 and 486,163.72 is: 670,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,523.08 : 983,288.42 = 486,163.72 : x
  2. Step 2: Convert to fraction form
    712,523.08/983,288.42 = 486,163.72/x
  3. Step 3: Cross multiply
    712,523.08x = 983,288.42 × 486,163.72
  4. Step 4: Simplify right side
    712,523.08x = 478,039,156,100.12
  5. Step 5: Solve for x
    x = 478,039,156,100.12/712,523.08
  6. Step 6: Final answer
    x = 670,910.42

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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.