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Finding the Fourth Proportional to 507,697.66, 761,567.52 and 418,785.58

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Solution

The fourth proportional to 507,697.66, 761,567.52 and 418,785.58 is: 628,195.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,697.66 : 761,567.52 = 418,785.58 : x
  2. Step 2: Convert to fraction form
    507,697.66/761,567.52 = 418,785.58/x
  3. Step 3: Cross multiply
    507,697.66x = 761,567.52 × 418,785.58
  4. Step 4: Simplify right side
    507,697.66x = 318,933,495,572.36
  5. Step 5: Solve for x
    x = 318,933,495,572.36/507,697.66
  6. Step 6: Final answer
    x = 628,195.72

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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.