Home / 939,861.12-1,297,009.65-510,141.33

Finding the Fourth Proportional to 939,861.12, 1,297,009.65 and 510,141.33

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Solution

The fourth proportional to 939,861.12, 1,297,009.65 and 510,141.33 is: 703,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,861.12 : 1,297,009.65 = 510,141.33 : x
  2. Step 2: Convert to fraction form
    939,861.12/1,297,009.65 = 510,141.33/x
  3. Step 3: Cross multiply
    939,861.12x = 1,297,009.65 × 510,141.33
  4. Step 4: Simplify right side
    939,861.12x = 661,658,227,873.84
  5. Step 5: Solve for x
    x = 661,658,227,873.84/939,861.12
  6. Step 6: Final answer
    x = 703,995.74

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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.