Home / 434,556.20-651,834.30-418,809.80

Finding the Fourth Proportional to 434,556.20, 651,834.30 and 418,809.80

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Solution

The fourth proportional to 434,556.20, 651,834.30 and 418,809.80 is: 628,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,556.20 : 651,834.30 = 418,809.80 : x
  2. Step 2: Convert to fraction form
    434,556.20/651,834.30 = 418,809.80/x
  3. Step 3: Cross multiply
    434,556.20x = 651,834.30 × 418,809.80
  4. Step 4: Simplify right side
    434,556.20x = 272,994,592,816.14
  5. Step 5: Solve for x
    x = 272,994,592,816.14/434,556.20
  6. Step 6: Final answer
    x = 628,214.70

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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.