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Finding the Fourth Proportional to 603,002.40, 904,503.60 and 402,235.80

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Solution

The fourth proportional to 603,002.40, 904,503.60 and 402,235.80 is: 603,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,002.40 : 904,503.60 = 402,235.80 : x
  2. Step 2: Convert to fraction form
    603,002.40/904,503.60 = 402,235.80/x
  3. Step 3: Cross multiply
    603,002.40x = 904,503.60 × 402,235.80
  4. Step 4: Simplify right side
    603,002.40x = 363,823,729,148.88
  5. Step 5: Solve for x
    x = 363,823,729,148.88/603,002.40
  6. Step 6: Final answer
    x = 603,353.70

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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.