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Finding the Fourth Proportional to 651,361.40, 977,819.70 and 367,278.20

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Solution

The fourth proportional to 651,361.40, 977,819.70 and 367,278.20 is: 551,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,361.40 : 977,819.70 = 367,278.20 : x
  2. Step 2: Convert to fraction form
    651,361.40/977,819.70 = 367,278.20/x
  3. Step 3: Cross multiply
    651,361.40x = 977,819.70 × 367,278.20
  4. Step 4: Simplify right side
    651,361.40x = 359,131,859,340.54
  5. Step 5: Solve for x
    x = 359,131,859,340.54/651,361.40
  6. Step 6: Final answer
    x = 551,355.76

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1.5x scale

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.