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Finding the Fourth Proportional to 570,984, 787,946.40 and 329,277.12

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Solution

The fourth proportional to 570,984, 787,946.40 and 329,277.12 is: 454,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,984 : 787,946.40 = 329,277.12 : x
  2. Step 2: Convert to fraction form
    570,984/787,946.40 = 329,277.12/x
  3. Step 3: Cross multiply
    570,984x = 787,946.40 × 329,277.12
  4. Step 4: Simplify right side
    570,984x = 259,452,721,306.37
  5. Step 5: Solve for x
    x = 259,452,721,306.37/570,984
  6. Step 6: Final answer
    x = 454,395.78

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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.