Home / 685,036.80-1,027,846.80-432,511.20

Finding the Fourth Proportional to 685,036.80, 1,027,846.80 and 432,511.20

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Solution

The fourth proportional to 685,036.80, 1,027,846.80 and 432,511.20 is: 648,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,036.80 : 1,027,846.80 = 432,511.20 : x
  2. Step 2: Convert to fraction form
    685,036.80/1,027,846.80 = 432,511.20/x
  3. Step 3: Cross multiply
    685,036.80x = 1,027,846.80 × 432,511.20
  4. Step 4: Simplify right side
    685,036.80x = 444,555,252,884.16
  5. Step 5: Solve for x
    x = 444,555,252,884.16/685,036.80
  6. Step 6: Final answer
    x = 648,950.91

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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.