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Finding the Fourth Proportional to 604,911.40, 907,367.10 and 538,426.60

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Solution

The fourth proportional to 604,911.40, 907,367.10 and 538,426.60 is: 807,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,911.40 : 907,367.10 = 538,426.60 : x
  2. Step 2: Convert to fraction form
    604,911.40/907,367.10 = 538,426.60/x
  3. Step 3: Cross multiply
    604,911.40x = 907,367.10 × 538,426.60
  4. Step 4: Simplify right side
    604,911.40x = 488,550,582,604.86
  5. Step 5: Solve for x
    x = 488,550,582,604.86/604,911.40
  6. Step 6: Final answer
    x = 807,639.90

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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.