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Finding the Fourth Proportional to 702,936.72, 970,057.28 and 380,646.83

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Solution

The fourth proportional to 702,936.72, 970,057.28 and 380,646.83 is: 525,295.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,936.72 : 970,057.28 = 380,646.83 : x
  2. Step 2: Convert to fraction form
    702,936.72/970,057.28 = 380,646.83/x
  3. Step 3: Cross multiply
    702,936.72x = 970,057.28 × 380,646.83
  4. Step 4: Simplify right side
    702,936.72x = 369,249,231,927.18
  5. Step 5: Solve for x
    x = 369,249,231,927.18/702,936.72
  6. Step 6: Final answer
    x = 525,295.12

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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.