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Finding the Fourth Proportional to 696,661.40, 961,597.04 and 454,980.48

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Solution

The fourth proportional to 696,661.40, 961,597.04 and 454,980.48 is: 628,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,661.40 : 961,597.04 = 454,980.48 : x
  2. Step 2: Convert to fraction form
    696,661.40/961,597.04 = 454,980.48/x
  3. Step 3: Cross multiply
    696,661.40x = 961,597.04 × 454,980.48
  4. Step 4: Simplify right side
    696,661.40x = 437,507,882,825.78
  5. Step 5: Solve for x
    x = 437,507,882,825.78/696,661.40
  6. Step 6: Final answer
    x = 628,006.49

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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.