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Finding the Fourth Proportional to 702,520.30, 969,480.66 and 380,230.48

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Solution

The fourth proportional to 702,520.30, 969,480.66 and 380,230.48 is: 524,719.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,520.30 : 969,480.66 = 380,230.48 : x
  2. Step 2: Convert to fraction form
    702,520.30/969,480.66 = 380,230.48/x
  3. Step 3: Cross multiply
    702,520.30x = 969,480.66 × 380,230.48
  4. Step 4: Simplify right side
    702,520.30x = 368,626,096,702.52
  5. Step 5: Solve for x
    x = 368,626,096,702.52/702,520.30
  6. Step 6: Final answer
    x = 524,719.49

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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.