Home / 1,151,996.64-1,589,756.36-642,699.12

Finding the Fourth Proportional to 1,151,996.64, 1,589,756.36 and 642,699.12

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Solution

The fourth proportional to 1,151,996.64, 1,589,756.36 and 642,699.12 is: 886,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,996.64 : 1,589,756.36 = 642,699.12 : x
  2. Step 2: Convert to fraction form
    1,151,996.64/1,589,756.36 = 642,699.12/x
  3. Step 3: Cross multiply
    1,151,996.64x = 1,589,756.36 × 642,699.12
  4. Step 4: Simplify right side
    1,151,996.64x = 1,021,735,013,586.40
  5. Step 5: Solve for x
    x = 1,021,735,013,586.40/1,151,996.64
  6. Step 6: Final answer
    x = 886,925.34

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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.