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Finding the Fourth Proportional to 385,101.40, 577,037.70 and 322,432.60

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Solution

The fourth proportional to 385,101.40, 577,037.70 and 322,432.60 is: 483,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,101.40 : 577,037.70 = 322,432.60 : x
  2. Step 2: Convert to fraction form
    385,101.40/577,037.70 = 322,432.60/x
  3. Step 3: Cross multiply
    385,101.40x = 577,037.70 × 322,432.60
  4. Step 4: Simplify right side
    385,101.40x = 186,055,765,909.02
  5. Step 5: Solve for x
    x = 186,055,765,909.02/385,101.40
  6. Step 6: Final answer
    x = 483,134.48

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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.