Home / 851,802.39-1,277,329.50-318,949.74

Finding the Fourth Proportional to 851,802.39, 1,277,329.50 and 318,949.74

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Solution

The fourth proportional to 851,802.39, 1,277,329.50 and 318,949.74 is: 478,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,802.39 : 1,277,329.50 = 318,949.74 : x
  2. Step 2: Convert to fraction form
    851,802.39/1,277,329.50 = 318,949.74/x
  3. Step 3: Cross multiply
    851,802.39x = 1,277,329.50 × 318,949.74
  4. Step 4: Simplify right side
    851,802.39x = 407,403,911,919.33
  5. Step 5: Solve for x
    x = 407,403,911,919.33/851,802.39
  6. Step 6: Final answer
    x = 478,284.54

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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.