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Finding the Fourth Proportional to 602,408.40, 903,612.60 and 331,803.60

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Solution

The fourth proportional to 602,408.40, 903,612.60 and 331,803.60 is: 497,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,408.40 : 903,612.60 = 331,803.60 : x
  2. Step 2: Convert to fraction form
    602,408.40/903,612.60 = 331,803.60/x
  3. Step 3: Cross multiply
    602,408.40x = 903,612.60 × 331,803.60
  4. Step 4: Simplify right side
    602,408.40x = 299,821,913,685.36
  5. Step 5: Solve for x
    x = 299,821,913,685.36/602,408.40
  6. Step 6: Final answer
    x = 497,705.40

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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.