Home / 1,456,475.80-2,009,944.40-811,890.76

Finding the Fourth Proportional to 1,456,475.80, 2,009,944.40 and 811,890.76

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Solution

The fourth proportional to 1,456,475.80, 2,009,944.40 and 811,890.76 is: 1,120,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,475.80 : 2,009,944.40 = 811,890.76 : x
  2. Step 2: Convert to fraction form
    1,456,475.80/2,009,944.40 = 811,890.76/x
  3. Step 3: Cross multiply
    1,456,475.80x = 2,009,944.40 × 811,890.76
  4. Step 4: Simplify right side
    1,456,475.80x = 1,631,855,286,473.74
  5. Step 5: Solve for x
    x = 1,631,855,286,473.74/1,456,475.80
  6. Step 6: Final answer
    x = 1,120,413.59

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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.