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Finding the Fourth Proportional to 659,553.66, 988,661.84 and 260,475.57

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Solution

The fourth proportional to 659,553.66, 988,661.84 and 260,475.57 is: 390,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,553.66 : 988,661.84 = 260,475.57 : x
  2. Step 2: Convert to fraction form
    659,553.66/988,661.84 = 260,475.57/x
  3. Step 3: Cross multiply
    659,553.66x = 988,661.84 × 260,475.57
  4. Step 4: Simplify right side
    659,553.66x = 257,522,255,008.87
  5. Step 5: Solve for x
    x = 257,522,255,008.87/659,553.66
  6. Step 6: Final answer
    x = 390,449.29

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1.5x scale

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.