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Finding the Fourth Proportional to 702,684.09, 969,702.93 and 380,394.09

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Solution

The fourth proportional to 702,684.09, 969,702.93 and 380,394.09 is: 524,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,684.09 : 969,702.93 = 380,394.09 : x
  2. Step 2: Convert to fraction form
    702,684.09/969,702.93 = 380,394.09/x
  3. Step 3: Cross multiply
    702,684.09x = 969,702.93 × 380,394.09
  4. Step 4: Simplify right side
    702,684.09x = 368,869,263,627.68
  5. Step 5: Solve for x
    x = 368,869,263,627.68/702,684.09
  6. Step 6: Final answer
    x = 524,943.24

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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.