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Finding the Fourth Proportional to 570,306.99, 787,198.86 and 328,751.04

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Solution

The fourth proportional to 570,306.99, 787,198.86 and 328,751.04 is: 453,777.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,306.99 : 787,198.86 = 328,751.04 : x
  2. Step 2: Convert to fraction form
    570,306.99/787,198.86 = 328,751.04/x
  3. Step 3: Cross multiply
    570,306.99x = 787,198.86 × 328,751.04
  4. Step 4: Simplify right side
    570,306.99x = 258,792,443,911.81
  5. Step 5: Solve for x
    x = 258,792,443,911.81/570,306.99
  6. Step 6: Final answer
    x = 453,777.44

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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.