Home / 628,614.72-867,485.84-342,137.16

Finding the Fourth Proportional to 628,614.72, 867,485.84 and 342,137.16

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Solution

The fourth proportional to 628,614.72, 867,485.84 and 342,137.16 is: 472,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,614.72 : 867,485.84 = 342,137.16 : x
  2. Step 2: Convert to fraction form
    628,614.72/867,485.84 = 342,137.16/x
  3. Step 3: Cross multiply
    628,614.72x = 867,485.84 × 342,137.16
  4. Step 4: Simplify right side
    628,614.72x = 296,799,139,927.13
  5. Step 5: Solve for x
    x = 296,799,139,927.13/628,614.72
  6. Step 6: Final answer
    x = 472,147.93

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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.