Home / 921,887.82-1,272,288.74-559,403.51

Finding the Fourth Proportional to 921,887.82, 1,272,288.74 and 559,403.51

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Solution

The fourth proportional to 921,887.82, 1,272,288.74 and 559,403.51 is: 772,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,887.82 : 1,272,288.74 = 559,403.51 : x
  2. Step 2: Convert to fraction form
    921,887.82/1,272,288.74 = 559,403.51/x
  3. Step 3: Cross multiply
    921,887.82x = 1,272,288.74 × 559,403.51
  4. Step 4: Simplify right side
    921,887.82x = 711,722,777,731.02
  5. Step 5: Solve for x
    x = 711,722,777,731.02/921,887.82
  6. Step 6: Final answer
    x = 772,027.53

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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.