Home / 434,826.70-652,240.05-419,080.30

Finding the Fourth Proportional to 434,826.70, 652,240.05 and 419,080.30

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Solution

The fourth proportional to 434,826.70, 652,240.05 and 419,080.30 is: 628,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,826.70 : 652,240.05 = 419,080.30 : x
  2. Step 2: Convert to fraction form
    434,826.70/652,240.05 = 419,080.30/x
  3. Step 3: Cross multiply
    434,826.70x = 652,240.05 × 419,080.30
  4. Step 4: Simplify right side
    434,826.70x = 273,340,955,826.02
  5. Step 5: Solve for x
    x = 273,340,955,826.02/434,826.70
  6. Step 6: Final answer
    x = 628,620.45

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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.