Home / 1,387,027.68-1,913,557.46-870,480.15

Finding the Fourth Proportional to 1,387,027.68, 1,913,557.46 and 870,480.15

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Solution

The fourth proportional to 1,387,027.68, 1,913,557.46 and 870,480.15 is: 1,200,923.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,027.68 : 1,913,557.46 = 870,480.15 : x
  2. Step 2: Convert to fraction form
    1,387,027.68/1,913,557.46 = 870,480.15/x
  3. Step 3: Cross multiply
    1,387,027.68x = 1,913,557.46 × 870,480.15
  4. Step 4: Simplify right side
    1,387,027.68x = 1,665,713,780,462.02
  5. Step 5: Solve for x
    x = 1,665,713,780,462.02/1,387,027.68
  6. Step 6: Final answer
    x = 1,200,923.24

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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.