Home / 820,929-1,132,871.29-458,359.03

Finding the Fourth Proportional to 820,929, 1,132,871.29 and 458,359.03

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Solution

The fourth proportional to 820,929, 1,132,871.29 and 458,359.03 is: 632,529.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,929 : 1,132,871.29 = 458,359.03 : x
  2. Step 2: Convert to fraction form
    820,929/1,132,871.29 = 458,359.03/x
  3. Step 3: Cross multiply
    820,929x = 1,132,871.29 × 458,359.03
  4. Step 4: Simplify right side
    820,929x = 519,261,785,599.25
  5. Step 5: Solve for x
    x = 519,261,785,599.25/820,929
  6. Step 6: Final answer
    x = 632,529.47

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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.