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Finding the Fourth Proportional to 570,699.69, 787,564.04 and 328,980.93

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Solution

The fourth proportional to 570,699.69, 787,564.04 and 328,980.93 is: 453,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,699.69 : 787,564.04 = 328,980.93 : x
  2. Step 2: Convert to fraction form
    570,699.69/787,564.04 = 328,980.93/x
  3. Step 3: Cross multiply
    570,699.69x = 787,564.04 × 328,980.93
  4. Step 4: Simplify right side
    570,699.69x = 259,093,548,668.85
  5. Step 5: Solve for x
    x = 259,093,548,668.85/570,699.69
  6. Step 6: Final answer
    x = 453,992.80

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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.