Home / 1,580,412.80-2,180,976.32-855,260.55

Finding the Fourth Proportional to 1,580,412.80, 2,180,976.32 and 855,260.55

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Solution

The fourth proportional to 1,580,412.80, 2,180,976.32 and 855,260.55 is: 1,180,263.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,412.80 : 2,180,976.32 = 855,260.55 : x
  2. Step 2: Convert to fraction form
    1,580,412.80/2,180,976.32 = 855,260.55/x
  3. Step 3: Cross multiply
    1,580,412.80x = 2,180,976.32 × 855,260.55
  4. Step 4: Simplify right side
    1,580,412.80x = 1,865,303,002,703.87
  5. Step 5: Solve for x
    x = 1,865,303,002,703.87/1,580,412.80
  6. Step 6: Final answer
    x = 1,180,263.16

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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.