Home / 1,126,878.69-1,554,920.52-636,669.30

Finding the Fourth Proportional to 1,126,878.69, 1,554,920.52 and 636,669.30

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Solution

The fourth proportional to 1,126,878.69, 1,554,920.52 and 636,669.30 is: 878,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,878.69 : 1,554,920.52 = 636,669.30 : x
  2. Step 2: Convert to fraction form
    1,126,878.69/1,554,920.52 = 636,669.30/x
  3. Step 3: Cross multiply
    1,126,878.69x = 1,554,920.52 × 636,669.30
  4. Step 4: Simplify right side
    1,126,878.69x = 989,970,159,024.04
  5. Step 5: Solve for x
    x = 989,970,159,024.04/1,126,878.69
  6. Step 6: Final answer
    x = 878,506.42

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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.