Home / 1,456,226.80-2,009,602.31-811,687.86

Finding the Fourth Proportional to 1,456,226.80, 2,009,602.31 and 811,687.86

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Solution

The fourth proportional to 1,456,226.80, 2,009,602.31 and 811,687.86 is: 1,120,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,226.80 : 2,009,602.31 = 811,687.86 : x
  2. Step 2: Convert to fraction form
    1,456,226.80/2,009,602.31 = 811,687.86/x
  3. Step 3: Cross multiply
    1,456,226.80x = 2,009,602.31 × 811,687.86
  4. Step 4: Simplify right side
    1,456,226.80x = 1,631,169,805,508.18
  5. Step 5: Solve for x
    x = 1,631,169,805,508.18/1,456,226.80
  6. Step 6: Final answer
    x = 1,120,134.45

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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.