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Finding the Fourth Proportional to 703,225.20, 970,455.42 and 380,935.29

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Solution

The fourth proportional to 703,225.20, 970,455.42 and 380,935.29 is: 525,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,225.20 : 970,455.42 = 380,935.29 : x
  2. Step 2: Convert to fraction form
    703,225.20/970,455.42 = 380,935.29/x
  3. Step 3: Cross multiply
    703,225.20x = 970,455.42 × 380,935.29
  4. Step 4: Simplify right side
    703,225.20x = 369,680,716,849.77
  5. Step 5: Solve for x
    x = 369,680,716,849.77/703,225.20
  6. Step 6: Final answer
    x = 525,693.22

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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.