Home / 821,285.53-1,133,261.89-458,663.11

Finding the Fourth Proportional to 821,285.53, 1,133,261.89 and 458,663.11

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Solution

The fourth proportional to 821,285.53, 1,133,261.89 and 458,663.11 is: 632,892.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,285.53 : 1,133,261.89 = 458,663.11 : x
  2. Step 2: Convert to fraction form
    821,285.53/1,133,261.89 = 458,663.11/x
  3. Step 3: Cross multiply
    821,285.53x = 1,133,261.89 × 458,663.11
  4. Step 4: Simplify right side
    821,285.53x = 519,785,418,932.07
  5. Step 5: Solve for x
    x = 519,785,418,932.07/821,285.53
  6. Step 6: Final answer
    x = 632,892.46

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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.