Home / 628,556.31-867,391.05-342,070.26

Finding the Fourth Proportional to 628,556.31, 867,391.05 and 342,070.26

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Solution

The fourth proportional to 628,556.31, 867,391.05 and 342,070.26 is: 472,047.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,556.31 : 867,391.05 = 342,070.26 : x
  2. Step 2: Convert to fraction form
    628,556.31/867,391.05 = 342,070.26/x
  3. Step 3: Cross multiply
    628,556.31x = 867,391.05 × 342,070.26
  4. Step 4: Simplify right side
    628,556.31x = 296,708,681,995.17
  5. Step 5: Solve for x
    x = 296,708,681,995.17/628,556.31
  6. Step 6: Final answer
    x = 472,047.89

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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.