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Finding the Fourth Proportional to 494,402.40, 741,603.60 and 392,925.60

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Solution

The fourth proportional to 494,402.40, 741,603.60 and 392,925.60 is: 589,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,402.40 : 741,603.60 = 392,925.60 : x
  2. Step 2: Convert to fraction form
    494,402.40/741,603.60 = 392,925.60/x
  3. Step 3: Cross multiply
    494,402.40x = 741,603.60 × 392,925.60
  4. Step 4: Simplify right side
    494,402.40x = 291,395,039,492.16
  5. Step 5: Solve for x
    x = 291,395,039,492.16/494,402.40
  6. Step 6: Final answer
    x = 589,388.40

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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.