Home / 889,138.73-1,226,999.04-507,171.89

Finding the Fourth Proportional to 889,138.73, 1,226,999.04 and 507,171.89

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Solution

The fourth proportional to 889,138.73, 1,226,999.04 and 507,171.89 is: 699,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,138.73 : 1,226,999.04 = 507,171.89 : x
  2. Step 2: Convert to fraction form
    889,138.73/1,226,999.04 = 507,171.89/x
  3. Step 3: Cross multiply
    889,138.73x = 1,226,999.04 × 507,171.89
  4. Step 4: Simplify right side
    889,138.73x = 622,299,416,009.99
  5. Step 5: Solve for x
    x = 622,299,416,009.99/889,138.73
  6. Step 6: Final answer
    x = 699,890.13

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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.