Home / 1,488,428.80-2,054,008.32-809,359.36

Finding the Fourth Proportional to 1,488,428.80, 2,054,008.32 and 809,359.36

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Solution

The fourth proportional to 1,488,428.80, 2,054,008.32 and 809,359.36 is: 1,116,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,428.80 : 2,054,008.32 = 809,359.36 : x
  2. Step 2: Convert to fraction form
    1,488,428.80/2,054,008.32 = 809,359.36/x
  3. Step 3: Cross multiply
    1,488,428.80x = 2,054,008.32 × 809,359.36
  4. Step 4: Simplify right side
    1,488,428.80x = 1,662,430,859,309.88
  5. Step 5: Solve for x
    x = 1,662,430,859,309.88/1,488,428.80
  6. Step 6: Final answer
    x = 1,116,903.18

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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.