Home / 780,288.52-1,076,798.16-422,592.52

Finding the Fourth Proportional to 780,288.52, 1,076,798.16 and 422,592.52

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Solution

The fourth proportional to 780,288.52, 1,076,798.16 and 422,592.52 is: 583,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,288.52 : 1,076,798.16 = 422,592.52 : x
  2. Step 2: Convert to fraction form
    780,288.52/1,076,798.16 = 422,592.52/x
  3. Step 3: Cross multiply
    780,288.52x = 1,076,798.16 × 422,592.52
  4. Step 4: Simplify right side
    780,288.52x = 455,046,847,965.76
  5. Step 5: Solve for x
    x = 455,046,847,965.76/780,288.52
  6. Step 6: Final answer
    x = 583,177.68

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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.