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Finding the Fourth Proportional to 504,206.70, 756,310.05 and 390,045.30

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Solution

The fourth proportional to 504,206.70, 756,310.05 and 390,045.30 is: 585,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,206.70 : 756,310.05 = 390,045.30 : x
  2. Step 2: Convert to fraction form
    504,206.70/756,310.05 = 390,045.30/x
  3. Step 3: Cross multiply
    504,206.70x = 756,310.05 × 390,045.30
  4. Step 4: Simplify right side
    504,206.70x = 294,995,180,345.27
  5. Step 5: Solve for x
    x = 294,995,180,345.27/504,206.70
  6. Step 6: Final answer
    x = 585,067.95

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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.