Home / 861,762.12-1,292,934.32-381,924.30

Finding the Fourth Proportional to 861,762.12, 1,292,934.32 and 381,924.30

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Solution

The fourth proportional to 861,762.12, 1,292,934.32 and 381,924.30 is: 573,015.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,762.12 : 1,292,934.32 = 381,924.30 : x
  2. Step 2: Convert to fraction form
    861,762.12/1,292,934.32 = 381,924.30/x
  3. Step 3: Cross multiply
    861,762.12x = 1,292,934.32 × 381,924.30
  4. Step 4: Simplify right side
    861,762.12x = 493,803,035,111.98
  5. Step 5: Solve for x
    x = 493,803,035,111.98/861,762.12
  6. Step 6: Final answer
    x = 573,015.48

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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.