Home / 1,172,973.04-1,618,701.78-636,429.04

Finding the Fourth Proportional to 1,172,973.04, 1,618,701.78 and 636,429.04

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Solution

The fourth proportional to 1,172,973.04, 1,618,701.78 and 636,429.04 is: 878,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,973.04 : 1,618,701.78 = 636,429.04 : x
  2. Step 2: Convert to fraction form
    1,172,973.04/1,618,701.78 = 636,429.04/x
  3. Step 3: Cross multiply
    1,172,973.04x = 1,618,701.78 × 636,429.04
  4. Step 4: Simplify right side
    1,172,973.04x = 1,030,188,819,891.69
  5. Step 5: Solve for x
    x = 1,030,188,819,891.69/1,172,973.04
  6. Step 6: Final answer
    x = 878,271.52

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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.