Home / 1,017,721.20-1,525,998.60-307,642.80

Finding the Fourth Proportional to 1,017,721.20, 1,525,998.60 and 307,642.80

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Solution

The fourth proportional to 1,017,721.20, 1,525,998.60 and 307,642.80 is: 461,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,721.20 : 1,525,998.60 = 307,642.80 : x
  2. Step 2: Convert to fraction form
    1,017,721.20/1,525,998.60 = 307,642.80/x
  3. Step 3: Cross multiply
    1,017,721.20x = 1,525,998.60 × 307,642.80
  4. Step 4: Simplify right side
    1,017,721.20x = 469,462,482,100.08
  5. Step 5: Solve for x
    x = 469,462,482,100.08/1,017,721.20
  6. Step 6: Final answer
    x = 461,287.91

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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.