Home / 698,720.80-1,048,081.20-622,613.20

Finding the Fourth Proportional to 698,720.80, 1,048,081.20 and 622,613.20

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Solution

The fourth proportional to 698,720.80, 1,048,081.20 and 622,613.20 is: 933,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,720.80 : 1,048,081.20 = 622,613.20 : x
  2. Step 2: Convert to fraction form
    698,720.80/1,048,081.20 = 622,613.20/x
  3. Step 3: Cross multiply
    698,720.80x = 1,048,081.20 × 622,613.20
  4. Step 4: Simplify right side
    698,720.80x = 652,549,189,791.84
  5. Step 5: Solve for x
    x = 652,549,189,791.84/698,720.80
  6. Step 6: Final answer
    x = 933,919.80

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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.