Home / 878,946.80-1,212,972.17-496,965.38

Finding the Fourth Proportional to 878,946.80, 1,212,972.17 and 496,965.38

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Solution

The fourth proportional to 878,946.80, 1,212,972.17 and 496,965.38 is: 685,826.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,946.80 : 1,212,972.17 = 496,965.38 : x
  2. Step 2: Convert to fraction form
    878,946.80/1,212,972.17 = 496,965.38/x
  3. Step 3: Cross multiply
    878,946.80x = 1,212,972.17 × 496,965.38
  4. Step 4: Simplify right side
    878,946.80x = 602,805,166,843.79
  5. Step 5: Solve for x
    x = 602,805,166,843.79/878,946.80
  6. Step 6: Final answer
    x = 685,826.69

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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.