Home / 1,402,876.53-1,935,991.15-821,960.63

Finding the Fourth Proportional to 1,402,876.53, 1,935,991.15 and 821,960.63

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Solution

The fourth proportional to 1,402,876.53, 1,935,991.15 and 821,960.63 is: 1,134,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,876.53 : 1,935,991.15 = 821,960.63 : x
  2. Step 2: Convert to fraction form
    1,402,876.53/1,935,991.15 = 821,960.63/x
  3. Step 3: Cross multiply
    1,402,876.53x = 1,935,991.15 × 821,960.63
  4. Step 4: Simplify right side
    1,402,876.53x = 1,591,308,505,328.42
  5. Step 5: Solve for x
    x = 1,591,308,505,328.42/1,402,876.53
  6. Step 6: Final answer
    x = 1,134,318.29

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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.