Home / 1,151,399.32-1,588,927.98-642,102.28

Finding the Fourth Proportional to 1,151,399.32, 1,588,927.98 and 642,102.28

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Solution

The fourth proportional to 1,151,399.32, 1,588,927.98 and 642,102.28 is: 886,099.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,399.32 : 1,588,927.98 = 642,102.28 : x
  2. Step 2: Convert to fraction form
    1,151,399.32/1,588,927.98 = 642,102.28/x
  3. Step 3: Cross multiply
    1,151,399.32x = 1,588,927.98 × 642,102.28
  4. Step 4: Simplify right side
    1,151,399.32x = 1,020,254,278,713.79
  5. Step 5: Solve for x
    x = 1,020,254,278,713.79/1,151,399.32
  6. Step 6: Final answer
    x = 886,099.43

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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.