Home / 787,003.76-1,085,968.64-496,505.77

Finding the Fourth Proportional to 787,003.76, 1,085,968.64 and 496,505.77

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Solution

The fourth proportional to 787,003.76, 1,085,968.64 and 496,505.77 is: 685,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,003.76 : 1,085,968.64 = 496,505.77 : x
  2. Step 2: Convert to fraction form
    787,003.76/1,085,968.64 = 496,505.77/x
  3. Step 3: Cross multiply
    787,003.76x = 1,085,968.64 × 496,505.77
  4. Step 4: Simplify right side
    787,003.76x = 539,189,694,325.40
  5. Step 5: Solve for x
    x = 539,189,694,325.40/787,003.76
  6. Step 6: Final answer
    x = 685,117.05

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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.