Home / 446,936.20-670,404.30-397,947.40

Finding the Fourth Proportional to 446,936.20, 670,404.30 and 397,947.40

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Solution

The fourth proportional to 446,936.20, 670,404.30 and 397,947.40 is: 596,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,936.20 : 670,404.30 = 397,947.40 : x
  2. Step 2: Convert to fraction form
    446,936.20/670,404.30 = 397,947.40/x
  3. Step 3: Cross multiply
    446,936.20x = 670,404.30 × 397,947.40
  4. Step 4: Simplify right side
    446,936.20x = 266,785,648,133.82
  5. Step 5: Solve for x
    x = 266,785,648,133.82/446,936.20
  6. Step 6: Final answer
    x = 596,921.10

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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.