Home / 439,749.12-659,254.32-306,235.20

Finding the Fourth Proportional to 439,749.12, 659,254.32 and 306,235.20

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Solution

The fourth proportional to 439,749.12, 659,254.32 and 306,235.20 is: 459,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,749.12 : 659,254.32 = 306,235.20 : x
  2. Step 2: Convert to fraction form
    439,749.12/659,254.32 = 306,235.20/x
  3. Step 3: Cross multiply
    439,749.12x = 659,254.32 × 306,235.20
  4. Step 4: Simplify right side
    439,749.12x = 201,886,878,536.06
  5. Step 5: Solve for x
    x = 201,886,878,536.06/439,749.12
  6. Step 6: Final answer
    x = 459,095.58

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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.