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Finding the Fourth Proportional to 702,984.30, 970,116.39 and 380,694.30

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Solution

The fourth proportional to 702,984.30, 970,116.39 and 380,694.30 is: 525,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,984.30 : 970,116.39 = 380,694.30 : x
  2. Step 2: Convert to fraction form
    702,984.30/970,116.39 = 380,694.30/x
  3. Step 3: Cross multiply
    702,984.30x = 970,116.39 × 380,694.30
  4. Step 4: Simplify right side
    702,984.30x = 369,317,780,009.58
  5. Step 5: Solve for x
    x = 369,317,780,009.58/702,984.30
  6. Step 6: Final answer
    x = 525,357.08

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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.