Home / 923,207.81-1,274,070.79-520,799.81

Finding the Fourth Proportional to 923,207.81, 1,274,070.79 and 520,799.81

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Solution

The fourth proportional to 923,207.81, 1,274,070.79 and 520,799.81 is: 718,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,207.81 : 1,274,070.79 = 520,799.81 : x
  2. Step 2: Convert to fraction form
    923,207.81/1,274,070.79 = 520,799.81/x
  3. Step 3: Cross multiply
    923,207.81x = 1,274,070.79 × 520,799.81
  4. Step 4: Simplify right side
    923,207.81x = 663,535,829,194.73
  5. Step 5: Solve for x
    x = 663,535,829,194.73/923,207.81
  6. Step 6: Final answer
    x = 718,728.57

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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.