Home / 780,271.75-1,076,775.02-422,575.75

Finding the Fourth Proportional to 780,271.75, 1,076,775.02 and 422,575.75

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Solution

The fourth proportional to 780,271.75, 1,076,775.02 and 422,575.75 is: 583,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,271.75 : 1,076,775.02 = 422,575.75 : x
  2. Step 2: Convert to fraction form
    780,271.75/1,076,775.02 = 422,575.75/x
  3. Step 3: Cross multiply
    780,271.75x = 1,076,775.02 × 422,575.75
  4. Step 4: Simplify right side
    780,271.75x = 455,019,011,657.77
  5. Step 5: Solve for x
    x = 455,019,011,657.77/780,271.75
  6. Step 6: Final answer
    x = 583,154.54

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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.