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Finding the Fourth Proportional to 703,018.52, 970,160.36 and 380,721.14

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Solution

The fourth proportional to 703,018.52, 970,160.36 and 380,721.14 is: 525,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,018.52 : 970,160.36 = 380,721.14 : x
  2. Step 2: Convert to fraction form
    703,018.52/970,160.36 = 380,721.14/x
  3. Step 3: Cross multiply
    703,018.52x = 970,160.36 × 380,721.14
  4. Step 4: Simplify right side
    703,018.52x = 369,360,558,242.01
  5. Step 5: Solve for x
    x = 369,360,558,242.01/703,018.52
  6. Step 6: Final answer
    x = 525,392.36

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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.