Home / 1,580,421.59-2,180,987.19-855,269.12

Finding the Fourth Proportional to 1,580,421.59, 2,180,987.19 and 855,269.12

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Solution

The fourth proportional to 1,580,421.59, 2,180,987.19 and 855,269.12 is: 1,180,274.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,421.59 : 2,180,987.19 = 855,269.12 : x
  2. Step 2: Convert to fraction form
    1,580,421.59/2,180,987.19 = 855,269.12/x
  3. Step 3: Cross multiply
    1,580,421.59x = 2,180,987.19 × 855,269.12
  4. Step 4: Simplify right side
    1,580,421.59x = 1,865,330,994,722.57
  5. Step 5: Solve for x
    x = 1,865,330,994,722.57/1,580,421.59
  6. Step 6: Final answer
    x = 1,180,274.31

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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.