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Finding the Fourth Proportional to 607,381.88, 838,187.06 and 352,749.47

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Solution

The fourth proportional to 607,381.88, 838,187.06 and 352,749.47 is: 486,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,381.88 : 838,187.06 = 352,749.47 : x
  2. Step 2: Convert to fraction form
    607,381.88/838,187.06 = 352,749.47/x
  3. Step 3: Cross multiply
    607,381.88x = 838,187.06 × 352,749.47
  4. Step 4: Simplify right side
    607,381.88x = 295,670,035,221.18
  5. Step 5: Solve for x
    x = 295,670,035,221.18/607,381.88
  6. Step 6: Final answer
    x = 486,794.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.