Home / 639,441.48-882,366.30-352,943.04

Finding the Fourth Proportional to 639,441.48, 882,366.30 and 352,943.04

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Solution

The fourth proportional to 639,441.48, 882,366.30 and 352,943.04 is: 487,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,441.48 : 882,366.30 = 352,943.04 : x
  2. Step 2: Convert to fraction form
    639,441.48/882,366.30 = 352,943.04/x
  3. Step 3: Cross multiply
    639,441.48x = 882,366.30 × 352,943.04
  4. Step 4: Simplify right side
    639,441.48x = 311,425,044,315.55
  5. Step 5: Solve for x
    x = 311,425,044,315.55/639,441.48
  6. Step 6: Final answer
    x = 487,026.65

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1.5x scale

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.