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Finding the Fourth Proportional to 647,396.29, 893,410.70 and 375,626.03

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Solution

The fourth proportional to 647,396.29, 893,410.70 and 375,626.03 is: 518,366.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,396.29 : 893,410.70 = 375,626.03 : x
  2. Step 2: Convert to fraction form
    647,396.29/893,410.70 = 375,626.03/x
  3. Step 3: Cross multiply
    647,396.29x = 893,410.70 × 375,626.03
  4. Step 4: Simplify right side
    647,396.29x = 335,588,314,400.52
  5. Step 5: Solve for x
    x = 335,588,314,400.52/647,396.29
  6. Step 6: Final answer
    x = 518,366.14

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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.