Home / 926,947.29-1,388,785.68-811,810.38

Finding the Fourth Proportional to 926,947.29, 1,388,785.68 and 811,810.38

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Solution

The fourth proportional to 926,947.29, 1,388,785.68 and 811,810.38 is: 1,216,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,947.29 : 1,388,785.68 = 811,810.38 : x
  2. Step 2: Convert to fraction form
    926,947.29/1,388,785.68 = 811,810.38/x
  3. Step 3: Cross multiply
    926,947.29x = 1,388,785.68 × 811,810.38
  4. Step 4: Simplify right side
    926,947.29x = 1,127,430,630,619.36
  5. Step 5: Solve for x
    x = 1,127,430,630,619.36/926,947.29
  6. Step 6: Final answer
    x = 1,216,283.43

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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.