Home / 878,546.20-1,212,381.12-496,559.92

Finding the Fourth Proportional to 878,546.20, 1,212,381.12 and 496,559.92

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Solution

The fourth proportional to 878,546.20, 1,212,381.12 and 496,559.92 is: 685,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,546.20 : 1,212,381.12 = 496,559.92 : x
  2. Step 2: Convert to fraction form
    878,546.20/1,212,381.12 = 496,559.92/x
  3. Step 3: Cross multiply
    878,546.20x = 1,212,381.12 × 496,559.92
  4. Step 4: Simplify right side
    878,546.20x = 602,019,871,956.71
  5. Step 5: Solve for x
    x = 602,019,871,956.71/878,546.20
  6. Step 6: Final answer
    x = 685,245.55

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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.