Home / 515,739.92-770,080.30-462,085.52

Finding the Fourth Proportional to 515,739.92, 770,080.30 and 462,085.52

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Solution

The fourth proportional to 515,739.92, 770,080.30 and 462,085.52 is: 689,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,739.92 : 770,080.30 = 462,085.52 : x
  2. Step 2: Convert to fraction form
    515,739.92/770,080.30 = 462,085.52/x
  3. Step 3: Cross multiply
    515,739.92x = 770,080.30 × 462,085.52
  4. Step 4: Simplify right side
    515,739.92x = 355,842,955,867.26
  5. Step 5: Solve for x
    x = 355,842,955,867.26/515,739.92
  6. Step 6: Final answer
    x = 689,965.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.