Home / 787,333.50-1,086,697.44-515,243.75

Finding the Fourth Proportional to 787,333.50, 1,086,697.44 and 515,243.75

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Solution

The fourth proportional to 787,333.50, 1,086,697.44 and 515,243.75 is: 711,152.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,333.50 : 1,086,697.44 = 515,243.75 : x
  2. Step 2: Convert to fraction form
    787,333.50/1,086,697.44 = 515,243.75/x
  3. Step 3: Cross multiply
    787,333.50x = 1,086,697.44 × 515,243.75
  4. Step 4: Simplify right side
    787,333.50x = 559,914,058,667.51
  5. Step 5: Solve for x
    x = 559,914,058,667.51/787,333.50
  6. Step 6: Final answer
    x = 711,152.34

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Double scale
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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.