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Finding the Fourth Proportional to 507,855.22, 761,775.23 and 123,605.39

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Solution

The fourth proportional to 507,855.22, 761,775.23 and 123,605.39 is: 185,406.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,855.22 : 761,775.23 = 123,605.39 : x
  2. Step 2: Convert to fraction form
    507,855.22/761,775.23 = 123,605.39/x
  3. Step 3: Cross multiply
    507,855.22x = 761,775.23 × 123,605.39
  4. Step 4: Simplify right side
    507,855.22x = 94,159,526,609.94
  5. Step 5: Solve for x
    x = 94,159,526,609.94/507,855.22
  6. Step 6: Final answer
    x = 185,406.24

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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.