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Finding the Fourth Proportional to 437,435.80, 656,153.70 and 374,450.20

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Solution

The fourth proportional to 437,435.80, 656,153.70 and 374,450.20 is: 561,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,435.80 : 656,153.70 = 374,450.20 : x
  2. Step 2: Convert to fraction form
    437,435.80/656,153.70 = 374,450.20/x
  3. Step 3: Cross multiply
    437,435.80x = 656,153.70 × 374,450.20
  4. Step 4: Simplify right side
    437,435.80x = 245,696,884,195.74
  5. Step 5: Solve for x
    x = 245,696,884,195.74/437,435.80
  6. Step 6: Final answer
    x = 561,675.30

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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.