Home / 1,132,996.86-1,563,182.96-642,885.30

Finding the Fourth Proportional to 1,132,996.86, 1,563,182.96 and 642,885.30

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Solution

The fourth proportional to 1,132,996.86, 1,563,182.96 and 642,885.30 is: 886,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,996.86 : 1,563,182.96 = 642,885.30 : x
  2. Step 2: Convert to fraction form
    1,132,996.86/1,563,182.96 = 642,885.30/x
  3. Step 3: Cross multiply
    1,132,996.86x = 1,563,182.96 × 642,885.30
  4. Step 4: Simplify right side
    1,132,996.86x = 1,004,947,342,980.06
  5. Step 5: Solve for x
    x = 1,004,947,342,980.06/1,132,996.86
  6. Step 6: Final answer
    x = 886,981.58

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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.