Home / 628,924.44-867,895.50-342,442.20

Finding the Fourth Proportional to 628,924.44, 867,895.50 and 342,442.20

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Solution

The fourth proportional to 628,924.44, 867,895.50 and 342,442.20 is: 472,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,924.44 : 867,895.50 = 342,442.20 : x
  2. Step 2: Convert to fraction form
    628,924.44/867,895.50 = 342,442.20/x
  3. Step 3: Cross multiply
    628,924.44x = 867,895.50 × 342,442.20
  4. Step 4: Simplify right side
    628,924.44x = 297,204,044,390.10
  5. Step 5: Solve for x
    x = 297,204,044,390.10/628,924.44
  6. Step 6: Final answer
    x = 472,559.22

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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.