Home / 501,821.56-692,514.45-272,378.90

Finding the Fourth Proportional to 501,821.56, 692,514.45 and 272,378.90

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Solution

The fourth proportional to 501,821.56, 692,514.45 and 272,378.90 is: 375,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,821.56 : 692,514.45 = 272,378.90 : x
  2. Step 2: Convert to fraction form
    501,821.56/692,514.45 = 272,378.90/x
  3. Step 3: Cross multiply
    501,821.56x = 692,514.45 × 272,378.90
  4. Step 4: Simplify right side
    501,821.56x = 188,626,320,662.53
  5. Step 5: Solve for x
    x = 188,626,320,662.53/501,821.56
  6. Step 6: Final answer
    x = 375,883.26

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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.