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Finding the Fourth Proportional to 702,280.56, 969,140.27 and 379,983.59

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Solution

The fourth proportional to 702,280.56, 969,140.27 and 379,983.59 is: 524,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,280.56 : 969,140.27 = 379,983.59 : x
  2. Step 2: Convert to fraction form
    702,280.56/969,140.27 = 379,983.59/x
  3. Step 3: Cross multiply
    702,280.56x = 969,140.27 × 379,983.59
  4. Step 4: Simplify right side
    702,280.56x = 368,257,395,112.43
  5. Step 5: Solve for x
    x = 368,257,395,112.43/702,280.56
  6. Step 6: Final answer
    x = 524,373.61

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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.