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Finding the Fourth Proportional to 604,419.60, 906,629.40 and 539,101.20

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Solution

The fourth proportional to 604,419.60, 906,629.40 and 539,101.20 is: 808,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,419.60 : 906,629.40 = 539,101.20 : x
  2. Step 2: Convert to fraction form
    604,419.60/906,629.40 = 539,101.20/x
  3. Step 3: Cross multiply
    604,419.60x = 906,629.40 × 539,101.20
  4. Step 4: Simplify right side
    604,419.60x = 488,764,997,495.28
  5. Step 5: Solve for x
    x = 488,764,997,495.28/604,419.60
  6. Step 6: Final answer
    x = 808,651.80

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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.