Home / 1,887,870.40-2,605,248.36-1,028,431.24

Finding the Fourth Proportional to 1,887,870.40, 2,605,248.36 and 1,028,431.24

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Solution

The fourth proportional to 1,887,870.40, 2,605,248.36 and 1,028,431.24 is: 1,419,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887,870.40 : 2,605,248.36 = 1,028,431.24 : x
  2. Step 2: Convert to fraction form
    1,887,870.40/2,605,248.36 = 1,028,431.24/x
  3. Step 3: Cross multiply
    1,887,870.40x = 2,605,248.36 × 1,028,431.24
  4. Step 4: Simplify right side
    1,887,870.40x = 2,679,318,801,382.77
  5. Step 5: Solve for x
    x = 2,679,318,801,382.77/1,887,870.40
  6. Step 6: Final answer
    x = 1,419,228.14

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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.