Home / 687,877.79-1,024,843.39-653,999.33

Finding the Fourth Proportional to 687,877.79, 1,024,843.39 and 653,999.33

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Solution

The fourth proportional to 687,877.79, 1,024,843.39 and 653,999.33 is: 974,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,877.79 : 1,024,843.39 = 653,999.33 : x
  2. Step 2: Convert to fraction form
    687,877.79/1,024,843.39 = 653,999.33/x
  3. Step 3: Cross multiply
    687,877.79x = 1,024,843.39 × 653,999.33
  4. Step 4: Simplify right side
    687,877.79x = 670,246,891,342.04
  5. Step 5: Solve for x
    x = 670,246,891,342.04/687,877.79
  6. Step 6: Final answer
    x = 974,369.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.