Home / 1,291,042.31-1,932,823.78-972,535.58

Finding the Fourth Proportional to 1,291,042.31, 1,932,823.78 and 972,535.58

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Solution

The fourth proportional to 1,291,042.31, 1,932,823.78 and 972,535.58 is: 1,455,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,042.31 : 1,932,823.78 = 972,535.58 : x
  2. Step 2: Convert to fraction form
    1,291,042.31/1,932,823.78 = 972,535.58/x
  3. Step 3: Cross multiply
    1,291,042.31x = 1,932,823.78 × 972,535.58
  4. Step 4: Simplify right side
    1,291,042.31x = 1,879,739,895,872.36
  5. Step 5: Solve for x
    x = 1,879,739,895,872.36/1,291,042.31
  6. Step 6: Final answer
    x = 1,455,986.28

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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.