Home / 1,456,471.80-2,009,938.86-811,886.76

Finding the Fourth Proportional to 1,456,471.80, 2,009,938.86 and 811,886.76

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Solution

The fourth proportional to 1,456,471.80, 2,009,938.86 and 811,886.76 is: 1,120,408.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,471.80 : 2,009,938.86 = 811,886.76 : x
  2. Step 2: Convert to fraction form
    1,456,471.80/2,009,938.86 = 811,886.76/x
  3. Step 3: Cross multiply
    1,456,471.80x = 2,009,938.86 × 811,886.76
  4. Step 4: Simplify right side
    1,456,471.80x = 1,631,842,748,843.49
  5. Step 5: Solve for x
    x = 1,631,842,748,843.49/1,456,471.80
  6. Step 6: Final answer
    x = 1,120,408.06

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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.