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Finding the Fourth Proportional to 526,668.48, 726,749.82 and 297,205.20

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Solution

The fourth proportional to 526,668.48, 726,749.82 and 297,205.20 is: 410,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,668.48 : 726,749.82 = 297,205.20 : x
  2. Step 2: Convert to fraction form
    526,668.48/726,749.82 = 297,205.20/x
  3. Step 3: Cross multiply
    526,668.48x = 726,749.82 × 297,205.20
  4. Step 4: Simplify right side
    526,668.48x = 215,993,825,603.06
  5. Step 5: Solve for x
    x = 215,993,825,603.06/526,668.48
  6. Step 6: Final answer
    x = 410,113.45

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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.