Home / 780,000.02-1,170,125.75-240,256.05

Finding the Fourth Proportional to 780,000.02, 1,170,125.75 and 240,256.05

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Solution

The fourth proportional to 780,000.02, 1,170,125.75 and 240,256.05 is: 360,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,000.02 : 1,170,125.75 = 240,256.05 : x
  2. Step 2: Convert to fraction form
    780,000.02/1,170,125.75 = 240,256.05/x
  3. Step 3: Cross multiply
    780,000.02x = 1,170,125.75 × 240,256.05
  4. Step 4: Simplify right side
    780,000.02x = 281,129,784,847.66
  5. Step 5: Solve for x
    x = 281,129,784,847.66/780,000.02
  6. Step 6: Final answer
    x = 360,422.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.