Home / 859,103.52-1,185,524.47-515,129.31

Finding the Fourth Proportional to 859,103.52, 1,185,524.47 and 515,129.31

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Solution

The fourth proportional to 859,103.52, 1,185,524.47 and 515,129.31 is: 710,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,103.52 : 1,185,524.47 = 515,129.31 : x
  2. Step 2: Convert to fraction form
    859,103.52/1,185,524.47 = 515,129.31/x
  3. Step 3: Cross multiply
    859,103.52x = 1,185,524.47 × 515,129.31
  4. Step 4: Simplify right side
    859,103.52x = 610,698,402,219.22
  5. Step 5: Solve for x
    x = 610,698,402,219.22/859,103.52
  6. Step 6: Final answer
    x = 710,855.43

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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.