Home / 1,488,430.80-2,054,011.08-809,361.36

Finding the Fourth Proportional to 1,488,430.80, 2,054,011.08 and 809,361.36

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Solution

The fourth proportional to 1,488,430.80, 2,054,011.08 and 809,361.36 is: 1,116,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,430.80 : 2,054,011.08 = 809,361.36 : x
  2. Step 2: Convert to fraction form
    1,488,430.80/2,054,011.08 = 809,361.36/x
  3. Step 3: Cross multiply
    1,488,430.80x = 2,054,011.08 × 809,361.36
  4. Step 4: Simplify right side
    1,488,430.80x = 1,662,437,201,163.87
  5. Step 5: Solve for x
    x = 1,662,437,201,163.87/1,488,430.80
  6. Step 6: Final answer
    x = 1,116,905.94

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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.