Home / 1,148,416.30-1,584,798.91-639,118.68

Finding the Fourth Proportional to 1,148,416.30, 1,584,798.91 and 639,118.68

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Solution

The fourth proportional to 1,148,416.30, 1,584,798.91 and 639,118.68 is: 881,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,416.30 : 1,584,798.91 = 639,118.68 : x
  2. Step 2: Convert to fraction form
    1,148,416.30/1,584,798.91 = 639,118.68/x
  3. Step 3: Cross multiply
    1,148,416.30x = 1,584,798.91 × 639,118.68
  4. Step 4: Simplify right side
    1,148,416.30x = 1,012,874,587,424.64
  5. Step 5: Solve for x
    x = 1,012,874,587,424.64/1,148,416.30
  6. Step 6: Final answer
    x = 881,975.11

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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.