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Finding the Fourth Proportional to 658,866.04, 909,332.64 and 417,171.04

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Solution

The fourth proportional to 658,866.04, 909,332.64 and 417,171.04 is: 575,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,866.04 : 909,332.64 = 417,171.04 : x
  2. Step 2: Convert to fraction form
    658,866.04/909,332.64 = 417,171.04/x
  3. Step 3: Cross multiply
    658,866.04x = 909,332.64 × 417,171.04
  4. Step 4: Simplify right side
    658,866.04x = 379,347,243,134.75
  5. Step 5: Solve for x
    x = 379,347,243,134.75/658,866.04
  6. Step 6: Final answer
    x = 575,757.77

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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.