Home / 755,313.86-1,042,356.60-411,172.70

Finding the Fourth Proportional to 755,313.86, 1,042,356.60 and 411,172.70

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Solution

The fourth proportional to 755,313.86, 1,042,356.60 and 411,172.70 is: 567,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,313.86 : 1,042,356.60 = 411,172.70 : x
  2. Step 2: Convert to fraction form
    755,313.86/1,042,356.60 = 411,172.70/x
  3. Step 3: Cross multiply
    755,313.86x = 1,042,356.60 × 411,172.70
  4. Step 4: Simplify right side
    755,313.86x = 428,588,577,584.82
  5. Step 5: Solve for x
    x = 428,588,577,584.82/755,313.86
  6. Step 6: Final answer
    x = 567,431.10

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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.