Home / 878,846.34-1,212,817.51-516,285.48

Finding the Fourth Proportional to 878,846.34, 1,212,817.51 and 516,285.48

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Solution

The fourth proportional to 878,846.34, 1,212,817.51 and 516,285.48 is: 712,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,846.34 : 1,212,817.51 = 516,285.48 : x
  2. Step 2: Convert to fraction form
    878,846.34/1,212,817.51 = 516,285.48/x
  3. Step 3: Cross multiply
    878,846.34x = 1,212,817.51 × 516,285.48
  4. Step 4: Simplify right side
    878,846.34x = 626,160,067,721.33
  5. Step 5: Solve for x
    x = 626,160,067,721.33/878,846.34
  6. Step 6: Final answer
    x = 712,479.58

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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.