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Finding the Fourth Proportional to 702,710.89, 969,736.59 and 380,418.64

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Solution

The fourth proportional to 702,710.89, 969,736.59 and 380,418.64 is: 524,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,710.89 : 969,736.59 = 380,418.64 : x
  2. Step 2: Convert to fraction form
    702,710.89/969,736.59 = 380,418.64/x
  3. Step 3: Cross multiply
    702,710.89x = 969,736.59 × 380,418.64
  4. Step 4: Simplify right side
    702,710.89x = 368,905,874,726.04
  5. Step 5: Solve for x
    x = 368,905,874,726.04/702,710.89
  6. Step 6: Final answer
    x = 524,975.32

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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.