Home / 567,778.03-783,534.39-309,655.39

Finding the Fourth Proportional to 567,778.03, 783,534.39 and 309,655.39

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Solution

The fourth proportional to 567,778.03, 783,534.39 and 309,655.39 is: 427,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,778.03 : 783,534.39 = 309,655.39 : x
  2. Step 2: Convert to fraction form
    567,778.03/783,534.39 = 309,655.39/x
  3. Step 3: Cross multiply
    567,778.03x = 783,534.39 × 309,655.39
  4. Step 4: Simplify right side
    567,778.03x = 242,625,647,113.86
  5. Step 5: Solve for x
    x = 242,625,647,113.86/567,778.03
  6. Step 6: Final answer
    x = 427,324.82

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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.