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Finding the Fourth Proportional to 703,269.19, 970,511.93 and 380,980.56

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Solution

The fourth proportional to 703,269.19, 970,511.93 and 380,980.56 is: 525,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,269.19 : 970,511.93 = 380,980.56 : x
  2. Step 2: Convert to fraction form
    703,269.19/970,511.93 = 380,980.56/x
  3. Step 3: Cross multiply
    703,269.19x = 970,511.93 × 380,980.56
  4. Step 4: Simplify right side
    703,269.19x = 369,746,178,578.08
  5. Step 5: Solve for x
    x = 369,746,178,578.08/703,269.19
  6. Step 6: Final answer
    x = 525,753.42

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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.