Home / 1,478,967.78-2,218,696.80-519,174.39

Finding the Fourth Proportional to 1,478,967.78, 2,218,696.80 and 519,174.39

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Solution

The fourth proportional to 1,478,967.78, 2,218,696.80 and 519,174.39 is: 778,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,967.78 : 2,218,696.80 = 519,174.39 : x
  2. Step 2: Convert to fraction form
    1,478,967.78/2,218,696.80 = 519,174.39/x
  3. Step 3: Cross multiply
    1,478,967.78x = 2,218,696.80 × 519,174.39
  4. Step 4: Simplify right side
    1,478,967.78x = 1,151,890,557,734.95
  5. Step 5: Solve for x
    x = 1,151,890,557,734.95/1,478,967.78
  6. Step 6: Final answer
    x = 778,847.64

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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.