Home / 1,455,107.94-2,181,913.47-781,756.56

Finding the Fourth Proportional to 1,455,107.94, 2,181,913.47 and 781,756.56

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Solution

The fourth proportional to 1,455,107.94, 2,181,913.47 and 781,756.56 is: 1,172,232.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,107.94 : 2,181,913.47 = 781,756.56 : x
  2. Step 2: Convert to fraction form
    1,455,107.94/2,181,913.47 = 781,756.56/x
  3. Step 3: Cross multiply
    1,455,107.94x = 2,181,913.47 × 781,756.56
  4. Step 4: Simplify right side
    1,455,107.94x = 1,705,725,168,524.86
  5. Step 5: Solve for x
    x = 1,705,725,168,524.86/1,455,107.94
  6. Step 6: Final answer
    x = 1,172,232.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.