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Finding the Fourth Proportional to 702,786.64, 969,853.44 and 380,503.48

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Solution

The fourth proportional to 702,786.64, 969,853.44 and 380,503.48 is: 525,099.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,786.64 : 969,853.44 = 380,503.48 : x
  2. Step 2: Convert to fraction form
    702,786.64/969,853.44 = 380,503.48/x
  3. Step 3: Cross multiply
    702,786.64x = 969,853.44 × 380,503.48
  4. Step 4: Simplify right side
    702,786.64x = 369,032,609,009.97
  5. Step 5: Solve for x
    x = 369,032,609,009.97/702,786.64
  6. Step 6: Final answer
    x = 525,099.07

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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.