Home / 739,343.45-1,019,906.08-642,329.33

Finding the Fourth Proportional to 739,343.45, 1,019,906.08 and 642,329.33

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Solution

The fourth proportional to 739,343.45, 1,019,906.08 and 642,329.33 is: 886,077.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,343.45 : 1,019,906.08 = 642,329.33 : x
  2. Step 2: Convert to fraction form
    739,343.45/1,019,906.08 = 642,329.33/x
  3. Step 3: Cross multiply
    739,343.45x = 1,019,906.08 × 642,329.33
  4. Step 4: Simplify right side
    739,343.45x = 655,115,583,929.80
  5. Step 5: Solve for x
    x = 655,115,583,929.80/739,343.45
  6. Step 6: Final answer
    x = 886,077.49

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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.