Home / 628,601.23-867,469.70-342,123.37

Finding the Fourth Proportional to 628,601.23, 867,469.70 and 342,123.37

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Solution

The fourth proportional to 628,601.23, 867,469.70 and 342,123.37 is: 472,130.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,601.23 : 867,469.70 = 342,123.37 : x
  2. Step 2: Convert to fraction form
    628,601.23/867,469.70 = 342,123.37/x
  3. Step 3: Cross multiply
    628,601.23x = 867,469.70 × 342,123.37
  4. Step 4: Simplify right side
    628,601.23x = 296,781,657,136.89
  5. Step 5: Solve for x
    x = 296,781,657,136.89/628,601.23
  6. Step 6: Final answer
    x = 472,130.25

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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.