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Finding the Fourth Proportional to 570,749.76, 787,626.72 and 329,032.80

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Solution

The fourth proportional to 570,749.76, 787,626.72 and 329,032.80 is: 454,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,749.76 : 787,626.72 = 329,032.80 : x
  2. Step 2: Convert to fraction form
    570,749.76/787,626.72 = 329,032.80/x
  3. Step 3: Cross multiply
    570,749.76x = 787,626.72 × 329,032.80
  4. Step 4: Simplify right side
    570,749.76x = 259,155,025,036.42
  5. Step 5: Solve for x
    x = 259,155,025,036.42/570,749.76
  6. Step 6: Final answer
    x = 454,060.68

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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.