Home / 861,835.74-1,292,704.98-381,925.32

Finding the Fourth Proportional to 861,835.74, 1,292,704.98 and 381,925.32

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Solution

The fourth proportional to 861,835.74, 1,292,704.98 and 381,925.32 is: 572,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,835.74 : 1,292,704.98 = 381,925.32 : x
  2. Step 2: Convert to fraction form
    861,835.74/1,292,704.98 = 381,925.32/x
  3. Step 3: Cross multiply
    861,835.74x = 1,292,704.98 × 381,925.32
  4. Step 4: Simplify right side
    861,835.74x = 493,716,763,152.09
  5. Step 5: Solve for x
    x = 493,716,763,152.09/861,835.74
  6. Step 6: Final answer
    x = 572,866.43

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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.