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Finding the Fourth Proportional to 700,616.68, 966,448.08 and 442,401.64

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Solution

The fourth proportional to 700,616.68, 966,448.08 and 442,401.64 is: 610,259.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,616.68 : 966,448.08 = 442,401.64 : x
  2. Step 2: Convert to fraction form
    700,616.68/966,448.08 = 442,401.64/x
  3. Step 3: Cross multiply
    700,616.68x = 966,448.08 × 442,401.64
  4. Step 4: Simplify right side
    700,616.68x = 427,558,215,566.85
  5. Step 5: Solve for x
    x = 427,558,215,566.85/700,616.68
  6. Step 6: Final answer
    x = 610,259.83

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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.