Home / 628,734.33-867,653.48-342,256.58

Finding the Fourth Proportional to 628,734.33, 867,653.48 and 342,256.58

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Solution

The fourth proportional to 628,734.33, 867,653.48 and 342,256.58 is: 472,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,734.33 : 867,653.48 = 342,256.58 : x
  2. Step 2: Convert to fraction form
    628,734.33/867,653.48 = 342,256.58/x
  3. Step 3: Cross multiply
    628,734.33x = 867,653.48 × 342,256.58
  4. Step 4: Simplify right side
    628,734.33x = 296,960,106,640.35
  5. Step 5: Solve for x
    x = 296,960,106,640.35/628,734.33
  6. Step 6: Final answer
    x = 472,314.13

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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.