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Finding the Fourth Proportional to 605,913.60, 908,287.20 and 470,902.80

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Solution

The fourth proportional to 605,913.60, 908,287.20 and 470,902.80 is: 705,900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,913.60 : 908,287.20 = 470,902.80 : x
  2. Step 2: Convert to fraction form
    605,913.60/908,287.20 = 470,902.80/x
  3. Step 3: Cross multiply
    605,913.60x = 908,287.20 × 470,902.80
  4. Step 4: Simplify right side
    605,913.60x = 427,714,985,684.16
  5. Step 5: Solve for x
    x = 427,714,985,684.16/605,913.60
  6. Step 6: Final answer
    x = 705,900.95

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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.