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Finding the Fourth Proportional to 437,617.60, 656,426.40 and 434,852.80

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Solution

The fourth proportional to 437,617.60, 656,426.40 and 434,852.80 is: 652,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,617.60 : 656,426.40 = 434,852.80 : x
  2. Step 2: Convert to fraction form
    437,617.60/656,426.40 = 434,852.80/x
  3. Step 3: Cross multiply
    437,617.60x = 656,426.40 × 434,852.80
  4. Step 4: Simplify right side
    437,617.60x = 285,448,858,033.92
  5. Step 5: Solve for x
    x = 285,448,858,033.92/437,617.60
  6. Step 6: Final answer
    x = 652,279.20

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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.