Home / 639,127.04-882,013.76-352,665.58

Finding the Fourth Proportional to 639,127.04, 882,013.76 and 352,665.58

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Solution

The fourth proportional to 639,127.04, 882,013.76 and 352,665.58 is: 486,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,127.04 : 882,013.76 = 352,665.58 : x
  2. Step 2: Convert to fraction form
    639,127.04/882,013.76 = 352,665.58/x
  3. Step 3: Cross multiply
    639,127.04x = 882,013.76 × 352,665.58
  4. Step 4: Simplify right side
    639,127.04x = 311,055,894,238.38
  5. Step 5: Solve for x
    x = 311,055,894,238.38/639,127.04
  6. Step 6: Final answer
    x = 486,688.68

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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.