Home / 1,172,984.48-1,618,712.88-636,440.48

Finding the Fourth Proportional to 1,172,984.48, 1,618,712.88 and 636,440.48

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Solution

The fourth proportional to 1,172,984.48, 1,618,712.88 and 636,440.48 is: 878,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,984.48 : 1,618,712.88 = 636,440.48 : x
  2. Step 2: Convert to fraction form
    1,172,984.48/1,618,712.88 = 636,440.48/x
  3. Step 3: Cross multiply
    1,172,984.48x = 1,618,712.88 × 636,440.48
  4. Step 4: Simplify right side
    1,172,984.48x = 1,030,214,402,329.38
  5. Step 5: Solve for x
    x = 1,030,214,402,329.38/1,172,984.48
  6. Step 6: Final answer
    x = 878,284.77

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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.