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Finding the Fourth Proportional to 584,008.60, 805,875.80 and 354,691.36

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Solution

The fourth proportional to 584,008.60, 805,875.80 and 354,691.36 is: 489,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,008.60 : 805,875.80 = 354,691.36 : x
  2. Step 2: Convert to fraction form
    584,008.60/805,875.80 = 354,691.36/x
  3. Step 3: Cross multiply
    584,008.60x = 805,875.80 × 354,691.36
  4. Step 4: Simplify right side
    584,008.60x = 285,837,183,493.09
  5. Step 5: Solve for x
    x = 285,837,183,493.09/584,008.60
  6. Step 6: Final answer
    x = 489,440.02

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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.