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Finding the Fourth Proportional to 520,404.74, 718,149.18 and 294,045.38

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Solution

The fourth proportional to 520,404.74, 718,149.18 and 294,045.38 is: 405,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,404.74 : 718,149.18 = 294,045.38 : x
  2. Step 2: Convert to fraction form
    520,404.74/718,149.18 = 294,045.38/x
  3. Step 3: Cross multiply
    520,404.74x = 718,149.18 × 294,045.38
  4. Step 4: Simplify right side
    520,404.74x = 211,168,448,529.79
  5. Step 5: Solve for x
    x = 211,168,448,529.79/520,404.74
  6. Step 6: Final answer
    x = 405,777.34

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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.