Home / 692,664.75-1,038,291.75-440,131.86

Finding the Fourth Proportional to 692,664.75, 1,038,291.75 and 440,131.86

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Solution

The fourth proportional to 692,664.75, 1,038,291.75 and 440,131.86 is: 659,749.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,664.75 : 1,038,291.75 = 440,131.86 : x
  2. Step 2: Convert to fraction form
    692,664.75/1,038,291.75 = 440,131.86/x
  3. Step 3: Cross multiply
    692,664.75x = 1,038,291.75 × 440,131.86
  4. Step 4: Simplify right side
    692,664.75x = 456,985,279,150.16
  5. Step 5: Solve for x
    x = 456,985,279,150.16/692,664.75
  6. Step 6: Final answer
    x = 659,749.58

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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.