Home / 947,486.73-1,421,967.10-661,318.21

Finding the Fourth Proportional to 947,486.73, 1,421,967.10 and 661,318.21

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Solution

The fourth proportional to 947,486.73, 1,421,967.10 and 661,318.21 is: 992,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,486.73 : 1,421,967.10 = 661,318.21 : x
  2. Step 2: Convert to fraction form
    947,486.73/1,421,967.10 = 661,318.21/x
  3. Step 3: Cross multiply
    947,486.73x = 1,421,967.10 × 661,318.21
  4. Step 4: Simplify right side
    947,486.73x = 940,372,737,250.89
  5. Step 5: Solve for x
    x = 940,372,737,250.89/947,486.73
  6. Step 6: Final answer
    x = 992,491.72

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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.