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Finding the Fourth Proportional to 521,492.94, 719,660.55 and 283,028.94

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Solution

The fourth proportional to 521,492.94, 719,660.55 and 283,028.94 is: 390,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,492.94 : 719,660.55 = 283,028.94 : x
  2. Step 2: Convert to fraction form
    521,492.94/719,660.55 = 283,028.94/x
  3. Step 3: Cross multiply
    521,492.94x = 719,660.55 × 283,028.94
  4. Step 4: Simplify right side
    521,492.94x = 203,684,762,626.32
  5. Step 5: Solve for x
    x = 203,684,762,626.32/521,492.94
  6. Step 6: Final answer
    x = 390,580.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.