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Finding the Fourth Proportional to 813,135, 1,122,096.06 and 468,985.17

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Solution

The fourth proportional to 813,135, 1,122,096.06 and 468,985.17 is: 647,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,135 : 1,122,096.06 = 468,985.17 : x
  2. Step 2: Convert to fraction form
    813,135/1,122,096.06 = 468,985.17/x
  3. Step 3: Cross multiply
    813,135x = 1,122,096.06 × 468,985.17
  4. Step 4: Simplify right side
    813,135x = 526,246,411,455.43
  5. Step 5: Solve for x
    x = 526,246,411,455.43/813,135
  6. Step 6: Final answer
    x = 647,182.09

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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.