Home / 1,580,720.31-2,181,400.64-855,567.84

Finding the Fourth Proportional to 1,580,720.31, 2,181,400.64 and 855,567.84

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Solution

The fourth proportional to 1,580,720.31, 2,181,400.64 and 855,567.84 is: 1,180,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,720.31 : 2,181,400.64 = 855,567.84 : x
  2. Step 2: Convert to fraction form
    1,580,720.31/2,181,400.64 = 855,567.84/x
  3. Step 3: Cross multiply
    1,580,720.31x = 2,181,400.64 × 855,567.84
  4. Step 4: Simplify right side
    1,580,720.31x = 1,866,336,218,554.58
  5. Step 5: Solve for x
    x = 1,866,336,218,554.58/1,580,720.31
  6. Step 6: Final answer
    x = 1,180,687.19

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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.