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Finding the Fourth Proportional to 520,097.27, 717,736.89 and 290,658.39

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Solution

The fourth proportional to 520,097.27, 717,736.89 and 290,658.39 is: 401,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,097.27 : 717,736.89 = 290,658.39 : x
  2. Step 2: Convert to fraction form
    520,097.27/717,736.89 = 290,658.39/x
  3. Step 3: Cross multiply
    520,097.27x = 717,736.89 × 290,658.39
  4. Step 4: Simplify right side
    520,097.27x = 208,616,249,018.90
  5. Step 5: Solve for x
    x = 208,616,249,018.90/520,097.27
  6. Step 6: Final answer
    x = 401,110.06

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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.