Home / 1,415,290.88-1,952,947.20-811,663.36

Finding the Fourth Proportional to 1,415,290.88, 1,952,947.20 and 811,663.36

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Solution

The fourth proportional to 1,415,290.88, 1,952,947.20 and 811,663.36 is: 1,120,007.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,290.88 : 1,952,947.20 = 811,663.36 : x
  2. Step 2: Convert to fraction form
    1,415,290.88/1,952,947.20 = 811,663.36/x
  3. Step 3: Cross multiply
    1,415,290.88x = 1,952,947.20 × 811,663.36
  4. Step 4: Simplify right side
    1,415,290.88x = 1,585,135,686,254.59
  5. Step 5: Solve for x
    x = 1,585,135,686,254.59/1,415,290.88
  6. Step 6: Final answer
    x = 1,120,007.00

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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.