Home / 628,641.07-867,524.01-342,160.47

Finding the Fourth Proportional to 628,641.07, 867,524.01 and 342,160.47

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Solution

The fourth proportional to 628,641.07, 867,524.01 and 342,160.47 is: 472,181.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,641.07 : 867,524.01 = 342,160.47 : x
  2. Step 2: Convert to fraction form
    628,641.07/867,524.01 = 342,160.47/x
  3. Step 3: Cross multiply
    628,641.07x = 867,524.01 × 342,160.47
  4. Step 4: Simplify right side
    628,641.07x = 296,832,422,997.89
  5. Step 5: Solve for x
    x = 296,832,422,997.89/628,641.07
  6. Step 6: Final answer
    x = 472,181.09

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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.