Home / 687,108.06-1,030,955.85-354,917.34

Finding the Fourth Proportional to 687,108.06, 1,030,955.85 and 354,917.34

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Solution

The fourth proportional to 687,108.06, 1,030,955.85 and 354,917.34 is: 532,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,108.06 : 1,030,955.85 = 354,917.34 : x
  2. Step 2: Convert to fraction form
    687,108.06/1,030,955.85 = 354,917.34/x
  3. Step 3: Cross multiply
    687,108.06x = 1,030,955.85 × 354,917.34
  4. Step 4: Simplify right side
    687,108.06x = 365,904,107,939.44
  5. Step 5: Solve for x
    x = 365,904,107,939.44/687,108.06
  6. Step 6: Final answer
    x = 532,527.75

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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.