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Finding the Fourth Proportional to 702,751.60, 969,785.49 and 380,459.08

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Solution

The fourth proportional to 702,751.60, 969,785.49 and 380,459.08 is: 525,027.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,751.60 : 969,785.49 = 380,459.08 : x
  2. Step 2: Convert to fraction form
    702,751.60/969,785.49 = 380,459.08/x
  3. Step 3: Cross multiply
    702,751.60x = 969,785.49 × 380,459.08
  4. Step 4: Simplify right side
    702,751.60x = 368,963,695,322.75
  5. Step 5: Solve for x
    x = 368,963,695,322.75/702,751.60
  6. Step 6: Final answer
    x = 525,027.19

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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.