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Finding the Fourth Proportional to 684,982.45, 961,074.95 and 684,982.45

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Solution

The fourth proportional to 684,982.45, 961,074.95 and 684,982.45 is: 961,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,982.45 : 961,074.95 = 684,982.45 : x
  2. Step 2: Convert to fraction form
    684,982.45/961,074.95 = 684,982.45/x
  3. Step 3: Cross multiply
    684,982.45x = 961,074.95 × 684,982.45
  4. Step 4: Simplify right side
    684,982.45x = 658,319,473,884.63
  5. Step 5: Solve for x
    x = 658,319,473,884.63/684,982.45
  6. Step 6: Final answer
    x = 961,074.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.