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Finding the Fourth Proportional to 507,605.18, 761,012.57 and 251,260.88

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Solution

The fourth proportional to 507,605.18, 761,012.57 and 251,260.88 is: 376,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,605.18 : 761,012.57 = 251,260.88 : x
  2. Step 2: Convert to fraction form
    507,605.18/761,012.57 = 251,260.88/x
  3. Step 3: Cross multiply
    507,605.18x = 761,012.57 × 251,260.88
  4. Step 4: Simplify right side
    507,605.18x = 191,212,690,559.95
  5. Step 5: Solve for x
    x = 191,212,690,559.95/507,605.18
  6. Step 6: Final answer
    x = 376,695.71

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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.