Home / 855,652.32-1,284,739.92-477,312.12

Finding the Fourth Proportional to 855,652.32, 1,284,739.92 and 477,312.12

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Solution

The fourth proportional to 855,652.32, 1,284,739.92 and 477,312.12 is: 716,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,652.32 : 1,284,739.92 = 477,312.12 : x
  2. Step 2: Convert to fraction form
    855,652.32/1,284,739.92 = 477,312.12/x
  3. Step 3: Cross multiply
    855,652.32x = 1,284,739.92 × 477,312.12
  4. Step 4: Simplify right side
    855,652.32x = 613,221,934,863.83
  5. Step 5: Solve for x
    x = 613,221,934,863.83/855,652.32
  6. Step 6: Final answer
    x = 716,671.85

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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.