Home / 639,582.62-959,976.72-470,587.68

Finding the Fourth Proportional to 639,582.62, 959,976.72 and 470,587.68

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Solution

The fourth proportional to 639,582.62, 959,976.72 and 470,587.68 is: 706,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,582.62 : 959,976.72 = 470,587.68 : x
  2. Step 2: Convert to fraction form
    639,582.62/959,976.72 = 470,587.68/x
  3. Step 3: Cross multiply
    639,582.62x = 959,976.72 × 470,587.68
  4. Step 4: Simplify right side
    639,582.62x = 451,753,217,518.81
  5. Step 5: Solve for x
    x = 451,753,217,518.81/639,582.62
  6. Step 6: Final answer
    x = 706,325.04

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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.