Home / 780,268.71-1,076,339.69-635,230.52

Finding the Fourth Proportional to 780,268.71, 1,076,339.69 and 635,230.52

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Solution

The fourth proportional to 780,268.71, 1,076,339.69 and 635,230.52 is: 876,267.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,268.71 : 1,076,339.69 = 635,230.52 : x
  2. Step 2: Convert to fraction form
    780,268.71/1,076,339.69 = 635,230.52/x
  3. Step 3: Cross multiply
    780,268.71x = 1,076,339.69 × 635,230.52
  4. Step 4: Simplify right side
    780,268.71x = 683,723,822,409.05
  5. Step 5: Solve for x
    x = 683,723,822,409.05/780,268.71
  6. Step 6: Final answer
    x = 876,267.12

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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.