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Finding the Fourth Proportional to 702,697.51, 969,725.69 and 380,407.60

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Solution

The fourth proportional to 702,697.51, 969,725.69 and 380,407.60 is: 524,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,697.51 : 969,725.69 = 380,407.60 : x
  2. Step 2: Convert to fraction form
    702,697.51/969,725.69 = 380,407.60/x
  3. Step 3: Cross multiply
    702,697.51x = 969,725.69 × 380,407.60
  4. Step 4: Simplify right side
    702,697.51x = 368,891,022,391.24
  5. Step 5: Solve for x
    x = 368,891,022,391.24/702,697.51
  6. Step 6: Final answer
    x = 524,964.18

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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.