Home / 1,490,508-2,056,905.90-811,449.36

Finding the Fourth Proportional to 1,490,508, 2,056,905.90 and 811,449.36

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Solution

The fourth proportional to 1,490,508, 2,056,905.90 and 811,449.36 is: 1,119,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,508 : 2,056,905.90 = 811,449.36 : x
  2. Step 2: Convert to fraction form
    1,490,508/2,056,905.90 = 811,449.36/x
  3. Step 3: Cross multiply
    1,490,508x = 2,056,905.90 × 811,449.36
  4. Step 4: Simplify right side
    1,490,508x = 1,669,074,976,135.22
  5. Step 5: Solve for x
    x = 1,669,074,976,135.22/1,490,508
  6. Step 6: Final answer
    x = 1,119,802.76

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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.