Home / 867,145.79-1,301,167.18-629,221.28

Finding the Fourth Proportional to 867,145.79, 1,301,167.18 and 629,221.28

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Solution

The fourth proportional to 867,145.79, 1,301,167.18 and 629,221.28 is: 944,157.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,145.79 : 1,301,167.18 = 629,221.28 : x
  2. Step 2: Convert to fraction form
    867,145.79/1,301,167.18 = 629,221.28/x
  3. Step 3: Cross multiply
    867,145.79x = 1,301,167.18 × 629,221.28
  4. Step 4: Simplify right side
    867,145.79x = 818,722,076,553.98
  5. Step 5: Solve for x
    x = 818,722,076,553.98/867,145.79
  6. Step 6: Final answer
    x = 944,157.36

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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.