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Finding the Fourth Proportional to 702,934.28, 970,047.56 and 380,644.35

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Solution

The fourth proportional to 702,934.28, 970,047.56 and 380,644.35 is: 525,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,934.28 : 970,047.56 = 380,644.35 : x
  2. Step 2: Convert to fraction form
    702,934.28/970,047.56 = 380,644.35/x
  3. Step 3: Cross multiply
    702,934.28x = 970,047.56 × 380,644.35
  4. Step 4: Simplify right side
    702,934.28x = 369,243,121,042.06
  5. Step 5: Solve for x
    x = 369,243,121,042.06/702,934.28
  6. Step 6: Final answer
    x = 525,288.26

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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.