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Finding the Fourth Proportional to 520,377.24, 718,111.26 and 294,017.88

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Solution

The fourth proportional to 520,377.24, 718,111.26 and 294,017.88 is: 405,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,377.24 : 718,111.26 = 294,017.88 : x
  2. Step 2: Convert to fraction form
    520,377.24/718,111.26 = 294,017.88/x
  3. Step 3: Cross multiply
    520,377.24x = 718,111.26 × 294,017.88
  4. Step 4: Simplify right side
    520,377.24x = 211,137,550,269.33
  5. Step 5: Solve for x
    x = 211,137,550,269.33/520,377.24
  6. Step 6: Final answer
    x = 405,739.40

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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.