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Finding the Fourth Proportional to 603,314.40, 904,712.40 and 303,679.20

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Solution

The fourth proportional to 603,314.40, 904,712.40 and 303,679.20 is: 455,388.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,314.40 : 904,712.40 = 303,679.20 : x
  2. Step 2: Convert to fraction form
    603,314.40/904,712.40 = 303,679.20/x
  3. Step 3: Cross multiply
    603,314.40x = 904,712.40 × 303,679.20
  4. Step 4: Simplify right side
    603,314.40x = 274,742,337,862.08
  5. Step 5: Solve for x
    x = 274,742,337,862.08/603,314.40
  6. Step 6: Final answer
    x = 455,388.33

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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.