Home / 878,956.50-1,212,926.28-496,991.28

Finding the Fourth Proportional to 878,956.50, 1,212,926.28 and 496,991.28

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Solution

The fourth proportional to 878,956.50, 1,212,926.28 and 496,991.28 is: 685,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,956.50 : 1,212,926.28 = 496,991.28 : x
  2. Step 2: Convert to fraction form
    878,956.50/1,212,926.28 = 496,991.28/x
  3. Step 3: Cross multiply
    878,956.50x = 1,212,926.28 × 496,991.28
  4. Step 4: Simplify right side
    878,956.50x = 602,813,784,442.84
  5. Step 5: Solve for x
    x = 602,813,784,442.84/878,956.50
  6. Step 6: Final answer
    x = 685,828.92

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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.