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Finding the Fourth Proportional to 570,529.44, 787,327.88 and 308,884.91

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Solution

The fourth proportional to 570,529.44, 787,327.88 and 308,884.91 is: 426,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,529.44 : 787,327.88 = 308,884.91 : x
  2. Step 2: Convert to fraction form
    570,529.44/787,327.88 = 308,884.91/x
  3. Step 3: Cross multiply
    570,529.44x = 787,327.88 × 308,884.91
  4. Step 4: Simplify right side
    570,529.44x = 243,193,695,873.23
  5. Step 5: Solve for x
    x = 243,193,695,873.23/570,529.44
  6. Step 6: Final answer
    x = 426,259.68

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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.