Home / 829,422.89-1,243,393.45-323,866.25

Finding the Fourth Proportional to 829,422.89, 1,243,393.45 and 323,866.25

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Solution

The fourth proportional to 829,422.89, 1,243,393.45 and 323,866.25 is: 485,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,422.89 : 1,243,393.45 = 323,866.25 : x
  2. Step 2: Convert to fraction form
    829,422.89/1,243,393.45 = 323,866.25/x
  3. Step 3: Cross multiply
    829,422.89x = 1,243,393.45 × 323,866.25
  4. Step 4: Simplify right side
    829,422.89x = 402,693,173,926.06
  5. Step 5: Solve for x
    x = 402,693,173,926.06/829,422.89
  6. Step 6: Final answer
    x = 485,510.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.