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Finding the Fourth Proportional to 526,078.78, 726,059.85 and 296,683.24

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Solution

The fourth proportional to 526,078.78, 726,059.85 and 296,683.24 is: 409,462.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,078.78 : 726,059.85 = 296,683.24 : x
  2. Step 2: Convert to fraction form
    526,078.78/726,059.85 = 296,683.24/x
  3. Step 3: Cross multiply
    526,078.78x = 726,059.85 × 296,683.24
  4. Step 4: Simplify right side
    526,078.78x = 215,409,788,731.91
  5. Step 5: Solve for x
    x = 215,409,788,731.91/526,078.78
  6. Step 6: Final answer
    x = 409,462.99

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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.