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Finding the Fourth Proportional to 556,815.33, 768,400.67 and 302,166.51

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Solution

The fourth proportional to 556,815.33, 768,400.67 and 302,166.51 is: 416,987.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,815.33 : 768,400.67 = 302,166.51 : x
  2. Step 2: Convert to fraction form
    556,815.33/768,400.67 = 302,166.51/x
  3. Step 3: Cross multiply
    556,815.33x = 768,400.67 × 302,166.51
  4. Step 4: Simplify right side
    556,815.33x = 232,184,947,224.73
  5. Step 5: Solve for x
    x = 232,184,947,224.73/556,815.33
  6. Step 6: Final answer
    x = 416,987.35

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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.