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Finding the Fourth Proportional to 702,258.13, 969,109.32 and 379,961.16

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Solution

The fourth proportional to 702,258.13, 969,109.32 and 379,961.16 is: 524,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,258.13 : 969,109.32 = 379,961.16 : x
  2. Step 2: Convert to fraction form
    702,258.13/969,109.32 = 379,961.16/x
  3. Step 3: Cross multiply
    702,258.13x = 969,109.32 × 379,961.16
  4. Step 4: Simplify right side
    702,258.13x = 368,223,901,394.01
  5. Step 5: Solve for x
    x = 368,223,901,394.01/702,258.13
  6. Step 6: Final answer
    x = 524,342.67

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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.