Home / 1,478,985.63-2,218,723.82-519,192.43

Finding the Fourth Proportional to 1,478,985.63, 2,218,723.82 and 519,192.43

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Solution

The fourth proportional to 1,478,985.63, 2,218,723.82 and 519,192.43 is: 778,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,985.63 : 2,218,723.82 = 519,192.43 : x
  2. Step 2: Convert to fraction form
    1,478,985.63/2,218,723.82 = 519,192.43/x
  3. Step 3: Cross multiply
    1,478,985.63x = 2,218,723.82 × 519,192.43
  4. Step 4: Simplify right side
    1,478,985.63x = 1,151,944,607,355.85
  5. Step 5: Solve for x
    x = 1,151,944,607,355.85/1,478,985.63
  6. Step 6: Final answer
    x = 778,874.78

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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.