Home / 1,340,241.80-1,849,547.97-728,394.57

Finding the Fourth Proportional to 1,340,241.80, 1,849,547.97 and 728,394.57

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Solution

The fourth proportional to 1,340,241.80, 1,849,547.97 and 728,394.57 is: 1,005,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,241.80 : 1,849,547.97 = 728,394.57 : x
  2. Step 2: Convert to fraction form
    1,340,241.80/1,849,547.97 = 728,394.57/x
  3. Step 3: Cross multiply
    1,340,241.80x = 1,849,547.97 × 728,394.57
  4. Step 4: Simplify right side
    1,340,241.80x = 1,347,200,698,302.52
  5. Step 5: Solve for x
    x = 1,347,200,698,302.52/1,340,241.80
  6. Step 6: Final answer
    x = 1,005,192.27

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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.