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Finding the Fourth Proportional to 570,303.82, 787,044.09 and 315,654.94

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Solution

The fourth proportional to 570,303.82, 787,044.09 and 315,654.94 is: 435,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,303.82 : 787,044.09 = 315,654.94 : x
  2. Step 2: Convert to fraction form
    570,303.82/787,044.09 = 315,654.94/x
  3. Step 3: Cross multiply
    570,303.82x = 787,044.09 × 315,654.94
  4. Step 4: Simplify right side
    570,303.82x = 248,434,355,006.31
  5. Step 5: Solve for x
    x = 248,434,355,006.31/570,303.82
  6. Step 6: Final answer
    x = 435,617.55

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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.