Home / 780,196.30-1,076,662.47-431,335.22

Finding the Fourth Proportional to 780,196.30, 1,076,662.47 and 431,335.22

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Solution

The fourth proportional to 780,196.30, 1,076,662.47 and 431,335.22 is: 595,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,196.30 : 1,076,662.47 = 431,335.22 : x
  2. Step 2: Convert to fraction form
    780,196.30/1,076,662.47 = 431,335.22/x
  3. Step 3: Cross multiply
    780,196.30x = 1,076,662.47 × 431,335.22
  4. Step 4: Simplify right side
    780,196.30x = 464,402,437,979.88
  5. Step 5: Solve for x
    x = 464,402,437,979.88/780,196.30
  6. Step 6: Final answer
    x = 595,237.94

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1.5x scale

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.