Home / 628,601.36-867,491.16-342,131.84

Finding the Fourth Proportional to 628,601.36, 867,491.16 and 342,131.84

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Solution

The fourth proportional to 628,601.36, 867,491.16 and 342,131.84 is: 472,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,601.36 : 867,491.16 = 342,131.84 : x
  2. Step 2: Convert to fraction form
    628,601.36/867,491.16 = 342,131.84/x
  3. Step 3: Cross multiply
    628,601.36x = 867,491.16 × 342,131.84
  4. Step 4: Simplify right side
    628,601.36x = 296,796,346,754.53
  5. Step 5: Solve for x
    x = 296,796,346,754.53/628,601.36
  6. Step 6: Final answer
    x = 472,153.52

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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.