Home / 1,531,939.86-2,113,756.56-887,321.61

Finding the Fourth Proportional to 1,531,939.86, 2,113,756.56 and 887,321.61

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Solution

The fourth proportional to 1,531,939.86, 2,113,756.56 and 887,321.61 is: 1,224,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,939.86 : 2,113,756.56 = 887,321.61 : x
  2. Step 2: Convert to fraction form
    1,531,939.86/2,113,756.56 = 887,321.61/x
  3. Step 3: Cross multiply
    1,531,939.86x = 2,113,756.56 × 887,321.61
  4. Step 4: Simplify right side
    1,531,939.86x = 1,875,581,873,967.26
  5. Step 5: Solve for x
    x = 1,875,581,873,967.26/1,531,939.86
  6. Step 6: Final answer
    x = 1,224,318.21

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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.