Home / 1,272,789.80-1,908,684.32-462,982

Finding the Fourth Proportional to 1,272,789.80, 1,908,684.32 and 462,982

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Solution

The fourth proportional to 1,272,789.80, 1,908,684.32 and 462,982 is: 694,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,789.80 : 1,908,684.32 = 462,982 : x
  2. Step 2: Convert to fraction form
    1,272,789.80/1,908,684.32 = 462,982/x
  3. Step 3: Cross multiply
    1,272,789.80x = 1,908,684.32 × 462,982
  4. Step 4: Simplify right side
    1,272,789.80x = 883,686,483,842.24
  5. Step 5: Solve for x
    x = 883,686,483,842.24/1,272,789.80
  6. Step 6: Final answer
    x = 694,290.98

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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.