Home / 1,312,767.20-1,811,955.81-855,022.43

Finding the Fourth Proportional to 1,312,767.20, 1,811,955.81 and 855,022.43

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Solution

The fourth proportional to 1,312,767.20, 1,811,955.81 and 855,022.43 is: 1,180,150.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,767.20 : 1,811,955.81 = 855,022.43 : x
  2. Step 2: Convert to fraction form
    1,312,767.20/1,811,955.81 = 855,022.43/x
  3. Step 3: Cross multiply
    1,312,767.20x = 1,811,955.81 × 855,022.43
  4. Step 4: Simplify right side
    1,312,767.20x = 1,549,262,859,718.82
  5. Step 5: Solve for x
    x = 1,549,262,859,718.82/1,312,767.20
  6. Step 6: Final answer
    x = 1,180,150.49

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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.