Home / 706,899.20-1,059,657.60-285,612.80

Finding the Fourth Proportional to 706,899.20, 1,059,657.60 and 285,612.80

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Solution

The fourth proportional to 706,899.20, 1,059,657.60 and 285,612.80 is: 428,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,899.20 : 1,059,657.60 = 285,612.80 : x
  2. Step 2: Convert to fraction form
    706,899.20/1,059,657.60 = 285,612.80/x
  3. Step 3: Cross multiply
    706,899.20x = 1,059,657.60 × 285,612.80
  4. Step 4: Simplify right side
    706,899.20x = 302,651,774,177.28
  5. Step 5: Solve for x
    x = 302,651,774,177.28/706,899.20
  6. Step 6: Final answer
    x = 428,139.93

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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.