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Finding the Fourth Proportional to 504,525.90, 696,242.31 and 278,171.40

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Solution

The fourth proportional to 504,525.90, 696,242.31 and 278,171.40 is: 383,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,525.90 : 696,242.31 = 278,171.40 : x
  2. Step 2: Convert to fraction form
    504,525.90/696,242.31 = 278,171.40/x
  3. Step 3: Cross multiply
    504,525.90x = 696,242.31 × 278,171.40
  4. Step 4: Simplify right side
    504,525.90x = 193,674,698,111.93
  5. Step 5: Solve for x
    x = 193,674,698,111.93/504,525.90
  6. Step 6: Final answer
    x = 383,874.64

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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.