Home / 1,386,879.51-1,913,856.71-775,037.04

Finding the Fourth Proportional to 1,386,879.51, 1,913,856.71 and 775,037.04

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Solution

The fourth proportional to 1,386,879.51, 1,913,856.71 and 775,037.04 is: 1,069,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,879.51 : 1,913,856.71 = 775,037.04 : x
  2. Step 2: Convert to fraction form
    1,386,879.51/1,913,856.71 = 775,037.04/x
  3. Step 3: Cross multiply
    1,386,879.51x = 1,913,856.71 × 775,037.04
  4. Step 4: Simplify right side
    1,386,879.51x = 1,483,309,839,502.54
  5. Step 5: Solve for x
    x = 1,483,309,839,502.54/1,386,879.51
  6. Step 6: Final answer
    x = 1,069,530.43

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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.