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Finding the Fourth Proportional to 437,114.88, 655,879.68 and 259,971.12

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Solution

The fourth proportional to 437,114.88, 655,879.68 and 259,971.12 is: 390,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,114.88 : 655,879.68 = 259,971.12 : x
  2. Step 2: Convert to fraction form
    437,114.88/655,879.68 = 259,971.12/x
  3. Step 3: Cross multiply
    437,114.88x = 655,879.68 × 259,971.12
  4. Step 4: Simplify right side
    437,114.88x = 170,509,774,994.84
  5. Step 5: Solve for x
    x = 170,509,774,994.84/437,114.88
  6. Step 6: Final answer
    x = 390,080.01

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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.