Home / 1,042,380.52-1,439,382.90-655,840.42

Finding the Fourth Proportional to 1,042,380.52, 1,439,382.90 and 655,840.42

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Solution

The fourth proportional to 1,042,380.52, 1,439,382.90 and 655,840.42 is: 905,624.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,380.52 : 1,439,382.90 = 655,840.42 : x
  2. Step 2: Convert to fraction form
    1,042,380.52/1,439,382.90 = 655,840.42/x
  3. Step 3: Cross multiply
    1,042,380.52x = 1,439,382.90 × 655,840.42
  4. Step 4: Simplify right side
    1,042,380.52x = 944,005,485,676.82
  5. Step 5: Solve for x
    x = 944,005,485,676.82/1,042,380.52
  6. Step 6: Final answer
    x = 905,624.64

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1.5x scale

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.