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Finding the Fourth Proportional to 570,314.93, 787,072.68 and 328,613.15

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Solution

The fourth proportional to 570,314.93, 787,072.68 and 328,613.15 is: 453,508.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,314.93 : 787,072.68 = 328,613.15 : x
  2. Step 2: Convert to fraction form
    570,314.93/787,072.68 = 328,613.15/x
  3. Step 3: Cross multiply
    570,314.93x = 787,072.68 × 328,613.15
  4. Step 4: Simplify right side
    570,314.93x = 258,642,434,621.42
  5. Step 5: Solve for x
    x = 258,642,434,621.42/570,314.93
  6. Step 6: Final answer
    x = 453,508.09

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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.