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Finding the Fourth Proportional to 604,419.60, 905,535.90 and 478,885.80

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Solution

The fourth proportional to 604,419.60, 905,535.90 and 478,885.80 is: 717,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,419.60 : 905,535.90 = 478,885.80 : x
  2. Step 2: Convert to fraction form
    604,419.60/905,535.90 = 478,885.80/x
  3. Step 3: Cross multiply
    604,419.60x = 905,535.90 × 478,885.80
  4. Step 4: Simplify right side
    604,419.60x = 433,648,283,900.22
  5. Step 5: Solve for x
    x = 433,648,283,900.22/604,419.60
  6. Step 6: Final answer
    x = 717,462.31

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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.