Home / 1,187,379.40-1,780,896.30-345,843.40

Finding the Fourth Proportional to 1,187,379.40, 1,780,896.30 and 345,843.40

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Solution

The fourth proportional to 1,187,379.40, 1,780,896.30 and 345,843.40 is: 518,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,379.40 : 1,780,896.30 = 345,843.40 : x
  2. Step 2: Convert to fraction form
    1,187,379.40/1,780,896.30 = 345,843.40/x
  3. Step 3: Cross multiply
    1,187,379.40x = 1,780,896.30 × 345,843.40
  4. Step 4: Simplify right side
    1,187,379.40x = 615,911,231,439.42
  5. Step 5: Solve for x
    x = 615,911,231,439.42/1,187,379.40
  6. Step 6: Final answer
    x = 518,714.77

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1.5x scale

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.