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Finding the Fourth Proportional to 639,400.32, 959,098.86 and 600,426.36

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Solution

The fourth proportional to 639,400.32, 959,098.86 and 600,426.36 is: 900,638.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,400.32 : 959,098.86 = 600,426.36 : x
  2. Step 2: Convert to fraction form
    639,400.32/959,098.86 = 600,426.36/x
  3. Step 3: Cross multiply
    639,400.32x = 959,098.86 × 600,426.36
  4. Step 4: Simplify right side
    639,400.32x = 575,868,237,389.95
  5. Step 5: Solve for x
    x = 575,868,237,389.95/639,400.32
  6. Step 6: Final answer
    x = 900,638.02

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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.