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Finding the Fourth Proportional to 425,908.20, 638,862.30 and 362,582.40

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Solution

The fourth proportional to 425,908.20, 638,862.30 and 362,582.40 is: 543,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,908.20 : 638,862.30 = 362,582.40 : x
  2. Step 2: Convert to fraction form
    425,908.20/638,862.30 = 362,582.40/x
  3. Step 3: Cross multiply
    425,908.20x = 638,862.30 × 362,582.40
  4. Step 4: Simplify right side
    425,908.20x = 231,640,226,003.52
  5. Step 5: Solve for x
    x = 231,640,226,003.52/425,908.20
  6. Step 6: Final answer
    x = 543,873.60

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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.