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Finding the Fourth Proportional to 463,389.57, 639,328.90 and 259,410.45

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Solution

The fourth proportional to 463,389.57, 639,328.90 and 259,410.45 is: 357,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,389.57 : 639,328.90 = 259,410.45 : x
  2. Step 2: Convert to fraction form
    463,389.57/639,328.90 = 259,410.45/x
  3. Step 3: Cross multiply
    463,389.57x = 639,328.90 × 259,410.45
  4. Step 4: Simplify right side
    463,389.57x = 165,848,597,647.01
  5. Step 5: Solve for x
    x = 165,848,597,647.01/463,389.57
  6. Step 6: Final answer
    x = 357,903.17

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1.5x scale

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.