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Finding the Fourth Proportional to 702,411.36, 969,330.12 and 380,121.36

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Solution

The fourth proportional to 702,411.36, 969,330.12 and 380,121.36 is: 524,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,411.36 : 969,330.12 = 380,121.36 : x
  2. Step 2: Convert to fraction form
    702,411.36/969,330.12 = 380,121.36/x
  3. Step 3: Cross multiply
    702,411.36x = 969,330.12 × 380,121.36
  4. Step 4: Simplify right side
    702,411.36x = 368,463,083,503.36
  5. Step 5: Solve for x
    x = 368,463,083,503.36/702,411.36
  6. Step 6: Final answer
    x = 524,568.80

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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.