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Finding the Fourth Proportional to 520,402.37, 779,194.15 and 270,559.49

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Solution

The fourth proportional to 520,402.37, 779,194.15 and 270,559.49 is: 405,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,402.37 : 779,194.15 = 270,559.49 : x
  2. Step 2: Convert to fraction form
    520,402.37/779,194.15 = 270,559.49/x
  3. Step 3: Cross multiply
    520,402.37x = 779,194.15 × 270,559.49
  4. Step 4: Simplify right side
    520,402.37x = 210,818,367,262.61
  5. Step 5: Solve for x
    x = 210,818,367,262.61/520,402.37
  6. Step 6: Final answer
    x = 405,106.47

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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.