Home / 757,778.07-1,045,659.29-418,224.45

Finding the Fourth Proportional to 757,778.07, 1,045,659.29 and 418,224.45

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Solution

The fourth proportional to 757,778.07, 1,045,659.29 and 418,224.45 is: 577,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,778.07 : 1,045,659.29 = 418,224.45 : x
  2. Step 2: Convert to fraction form
    757,778.07/1,045,659.29 = 418,224.45/x
  3. Step 3: Cross multiply
    757,778.07x = 1,045,659.29 × 418,224.45
  4. Step 4: Simplify right side
    757,778.07x = 437,320,279,356.52
  5. Step 5: Solve for x
    x = 437,320,279,356.52/757,778.07
  6. Step 6: Final answer
    x = 577,108.65

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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.