Home / 438,634.20-657,951.30-376,426.20

Finding the Fourth Proportional to 438,634.20, 657,951.30 and 376,426.20

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Solution

The fourth proportional to 438,634.20, 657,951.30 and 376,426.20 is: 564,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,634.20 : 657,951.30 = 376,426.20 : x
  2. Step 2: Convert to fraction form
    438,634.20/657,951.30 = 376,426.20/x
  3. Step 3: Cross multiply
    438,634.20x = 657,951.30 × 376,426.20
  4. Step 4: Simplify right side
    438,634.20x = 247,670,107,644.06
  5. Step 5: Solve for x
    x = 247,670,107,644.06/438,634.20
  6. Step 6: Final answer
    x = 564,639.30

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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.