Home / 501,481.08-692,021.34-275,121.72

Finding the Fourth Proportional to 501,481.08, 692,021.34 and 275,121.72

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Solution

The fourth proportional to 501,481.08, 692,021.34 and 275,121.72 is: 379,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,481.08 : 692,021.34 = 275,121.72 : x
  2. Step 2: Convert to fraction form
    501,481.08/692,021.34 = 275,121.72/x
  3. Step 3: Cross multiply
    501,481.08x = 692,021.34 × 275,121.72
  4. Step 4: Simplify right side
    501,481.08x = 190,390,101,337.51
  5. Step 5: Solve for x
    x = 190,390,101,337.51/501,481.08
  6. Step 6: Final answer
    x = 379,655.60

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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.