Home / 855,289.20-1,283,218.80-286,726.50

Finding the Fourth Proportional to 855,289.20, 1,283,218.80 and 286,726.50

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Solution

The fourth proportional to 855,289.20, 1,283,218.80 and 286,726.50 is: 430,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,289.20 : 1,283,218.80 = 286,726.50 : x
  2. Step 2: Convert to fraction form
    855,289.20/1,283,218.80 = 286,726.50/x
  3. Step 3: Cross multiply
    855,289.20x = 1,283,218.80 × 286,726.50
  4. Step 4: Simplify right side
    855,289.20x = 367,932,835,258.20
  5. Step 5: Solve for x
    x = 367,932,835,258.20/855,289.20
  6. Step 6: Final answer
    x = 430,185.29

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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.