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Finding the Fourth Proportional to 628,001.40, 942,149.10 and 207,276.86

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Solution

The fourth proportional to 628,001.40, 942,149.10 and 207,276.86 is: 310,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,001.40 : 942,149.10 = 207,276.86 : x
  2. Step 2: Convert to fraction form
    628,001.40/942,149.10 = 207,276.86/x
  3. Step 3: Cross multiply
    628,001.40x = 942,149.10 × 207,276.86
  4. Step 4: Simplify right side
    628,001.40x = 195,285,707,099.83
  5. Step 5: Solve for x
    x = 195,285,707,099.83/628,001.40
  6. Step 6: Final answer
    x = 310,963.81

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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.