Home / 819,001.12-1,228,676.56-286,539.52

Finding the Fourth Proportional to 819,001.12, 1,228,676.56 and 286,539.52

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Solution

The fourth proportional to 819,001.12, 1,228,676.56 and 286,539.52 is: 429,870.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,001.12 : 1,228,676.56 = 286,539.52 : x
  2. Step 2: Convert to fraction form
    819,001.12/1,228,676.56 = 286,539.52/x
  3. Step 3: Cross multiply
    819,001.12x = 1,228,676.56 × 286,539.52
  4. Step 4: Simplify right side
    819,001.12x = 352,064,391,737.65
  5. Step 5: Solve for x
    x = 352,064,391,737.65/819,001.12
  6. Step 6: Final answer
    x = 429,870.46

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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.