Home / 437,623.60-656,435.40-434,858.80

Finding the Fourth Proportional to 437,623.60, 656,435.40 and 434,858.80

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Solution

The fourth proportional to 437,623.60, 656,435.40 and 434,858.80 is: 652,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,623.60 : 656,435.40 = 434,858.80 : x
  2. Step 2: Convert to fraction form
    437,623.60/656,435.40 = 434,858.80/x
  3. Step 3: Cross multiply
    437,623.60x = 656,435.40 × 434,858.80
  4. Step 4: Simplify right side
    437,623.60x = 285,456,710,321.52
  5. Step 5: Solve for x
    x = 285,456,710,321.52/437,623.60
  6. Step 6: Final answer
    x = 652,288.20

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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.