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Finding the Fourth Proportional to 570,479.56, 787,290.78 and 328,801.48

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Solution

The fourth proportional to 570,479.56, 787,290.78 and 328,801.48 is: 453,762.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,479.56 : 787,290.78 = 328,801.48 : x
  2. Step 2: Convert to fraction form
    570,479.56/787,290.78 = 328,801.48/x
  3. Step 3: Cross multiply
    570,479.56x = 787,290.78 × 328,801.48
  4. Step 4: Simplify right side
    570,479.56x = 258,862,373,654.35
  5. Step 5: Solve for x
    x = 258,862,373,654.35/570,479.56
  6. Step 6: Final answer
    x = 453,762.75

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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.