Home / 628,755.36-867,682.40-342,277.52

Finding the Fourth Proportional to 628,755.36, 867,682.40 and 342,277.52

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Solution

The fourth proportional to 628,755.36, 867,682.40 and 342,277.52 is: 472,342.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,755.36 : 867,682.40 = 342,277.52 : x
  2. Step 2: Convert to fraction form
    628,755.36/867,682.40 = 342,277.52/x
  3. Step 3: Cross multiply
    628,755.36x = 867,682.40 × 342,277.52
  4. Step 4: Simplify right side
    628,755.36x = 296,988,180,019.65
  5. Step 5: Solve for x
    x = 296,988,180,019.65/628,755.36
  6. Step 6: Final answer
    x = 472,342.98

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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.