Home / 780,133.80-1,170,200.70-443,044.20

Finding the Fourth Proportional to 780,133.80, 1,170,200.70 and 443,044.20

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Solution

The fourth proportional to 780,133.80, 1,170,200.70 and 443,044.20 is: 664,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,133.80 : 1,170,200.70 = 443,044.20 : x
  2. Step 2: Convert to fraction form
    780,133.80/1,170,200.70 = 443,044.20/x
  3. Step 3: Cross multiply
    780,133.80x = 1,170,200.70 × 443,044.20
  4. Step 4: Simplify right side
    780,133.80x = 518,450,632,970.94
  5. Step 5: Solve for x
    x = 518,450,632,970.94/780,133.80
  6. Step 6: Final answer
    x = 664,566.30

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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.