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Finding the Fourth Proportional to 654,313.20, 980,951.40 and 358,825.20

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Solution

The fourth proportional to 654,313.20, 980,951.40 and 358,825.20 is: 537,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,313.20 : 980,951.40 = 358,825.20 : x
  2. Step 2: Convert to fraction form
    654,313.20/980,951.40 = 358,825.20/x
  3. Step 3: Cross multiply
    654,313.20x = 980,951.40 × 358,825.20
  4. Step 4: Simplify right side
    654,313.20x = 351,990,082,295.28
  5. Step 5: Solve for x
    x = 351,990,082,295.28/654,313.20
  6. Step 6: Final answer
    x = 537,953.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.