Home / 1,491,026.40-2,236,539.60-1,390,643.10

Finding the Fourth Proportional to 1,491,026.40, 2,236,539.60 and 1,390,643.10

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Solution

The fourth proportional to 1,491,026.40, 2,236,539.60 and 1,390,643.10 is: 2,085,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,026.40 : 2,236,539.60 = 1,390,643.10 : x
  2. Step 2: Convert to fraction form
    1,491,026.40/2,236,539.60 = 1,390,643.10/x
  3. Step 3: Cross multiply
    1,491,026.40x = 2,236,539.60 × 1,390,643.10
  4. Step 4: Simplify right side
    1,491,026.40x = 3,110,228,362,616.76
  5. Step 5: Solve for x
    x = 3,110,228,362,616.76/1,491,026.40
  6. Step 6: Final answer
    x = 2,085,964.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.