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Finding the Fourth Proportional to 488,035.83, 732,179.95 and 285,802.72

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Solution

The fourth proportional to 488,035.83, 732,179.95 and 285,802.72 is: 428,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,035.83 : 732,179.95 = 285,802.72 : x
  2. Step 2: Convert to fraction form
    488,035.83/732,179.95 = 285,802.72/x
  3. Step 3: Cross multiply
    488,035.83x = 732,179.95 × 285,802.72
  4. Step 4: Simplify right side
    488,035.83x = 209,259,021,239.46
  5. Step 5: Solve for x
    x = 209,259,021,239.46/488,035.83
  6. Step 6: Final answer
    x = 428,777.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.