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Finding the Fourth Proportional to 605,929.60, 908,311.20 and 470,918.80

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Solution

The fourth proportional to 605,929.60, 908,311.20 and 470,918.80 is: 705,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,929.60 : 908,311.20 = 470,918.80 : x
  2. Step 2: Convert to fraction form
    605,929.60/908,311.20 = 470,918.80/x
  3. Step 3: Cross multiply
    605,929.60x = 908,311.20 × 470,918.80
  4. Step 4: Simplify right side
    605,929.60x = 427,740,820,330.56
  5. Step 5: Solve for x
    x = 427,740,820,330.56/605,929.60
  6. Step 6: Final answer
    x = 705,924.95

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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.