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Finding the Fourth Proportional to 507,624.64, 760,924.26 and 318,217.78

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Solution

The fourth proportional to 507,624.64, 760,924.26 and 318,217.78 is: 477,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,624.64 : 760,924.26 = 318,217.78 : x
  2. Step 2: Convert to fraction form
    507,624.64/760,924.26 = 318,217.78/x
  3. Step 3: Cross multiply
    507,624.64x = 760,924.26 × 318,217.78
  4. Step 4: Simplify right side
    507,624.64x = 242,139,628,765.34
  5. Step 5: Solve for x
    x = 242,139,628,765.34/507,624.64
  6. Step 6: Final answer
    x = 477,005.27

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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.