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Finding the Fourth Proportional to 639,158.76, 882,009.54 and 367,035.24

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Solution

The fourth proportional to 639,158.76, 882,009.54 and 367,035.24 is: 506,491.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,158.76 : 882,009.54 = 367,035.24 : x
  2. Step 2: Convert to fraction form
    639,158.76/882,009.54 = 367,035.24/x
  3. Step 3: Cross multiply
    639,158.76x = 882,009.54 × 367,035.24
  4. Step 4: Simplify right side
    639,158.76x = 323,728,583,196.19
  5. Step 5: Solve for x
    x = 323,728,583,196.19/639,158.76
  6. Step 6: Final answer
    x = 506,491.66

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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.