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Finding the Fourth Proportional to 604,829.60, 907,244.40 and 339,408.80

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Solution

The fourth proportional to 604,829.60, 907,244.40 and 339,408.80 is: 509,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,829.60 : 907,244.40 = 339,408.80 : x
  2. Step 2: Convert to fraction form
    604,829.60/907,244.40 = 339,408.80/x
  3. Step 3: Cross multiply
    604,829.60x = 907,244.40 × 339,408.80
  4. Step 4: Simplify right side
    604,829.60x = 307,926,733,110.72
  5. Step 5: Solve for x
    x = 307,926,733,110.72/604,829.60
  6. Step 6: Final answer
    x = 509,113.20

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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.