Home / 825,675.80-1,238,513.70-720,699.80

Finding the Fourth Proportional to 825,675.80, 1,238,513.70 and 720,699.80

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Solution

The fourth proportional to 825,675.80, 1,238,513.70 and 720,699.80 is: 1,081,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,675.80 : 1,238,513.70 = 720,699.80 : x
  2. Step 2: Convert to fraction form
    825,675.80/1,238,513.70 = 720,699.80/x
  3. Step 3: Cross multiply
    825,675.80x = 1,238,513.70 × 720,699.80
  4. Step 4: Simplify right side
    825,675.80x = 892,596,575,887.26
  5. Step 5: Solve for x
    x = 892,596,575,887.26/825,675.80
  6. Step 6: Final answer
    x = 1,081,049.70

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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.