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Finding the Fourth Proportional to 606,904.20, 909,578.70 and 540,030.60

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Solution

The fourth proportional to 606,904.20, 909,578.70 and 540,030.60 is: 809,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,904.20 : 909,578.70 = 540,030.60 : x
  2. Step 2: Convert to fraction form
    606,904.20/909,578.70 = 540,030.60/x
  3. Step 3: Cross multiply
    606,904.20x = 909,578.70 × 540,030.60
  4. Step 4: Simplify right side
    606,904.20x = 491,200,331,108.22
  5. Step 5: Solve for x
    x = 491,200,331,108.22/606,904.20
  6. Step 6: Final answer
    x = 809,353.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.