Home / 780,804.92-1,077,511.34-423,108.92

Finding the Fourth Proportional to 780,804.92, 1,077,511.34 and 423,108.92

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Solution

The fourth proportional to 780,804.92, 1,077,511.34 and 423,108.92 is: 583,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,804.92 : 1,077,511.34 = 423,108.92 : x
  2. Step 2: Convert to fraction form
    780,804.92/1,077,511.34 = 423,108.92/x
  3. Step 3: Cross multiply
    780,804.92x = 1,077,511.34 × 423,108.92
  4. Step 4: Simplify right side
    780,804.92x = 455,904,659,355.15
  5. Step 5: Solve for x
    x = 455,904,659,355.15/780,804.92
  6. Step 6: Final answer
    x = 583,890.61

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Double scale
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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.