Home / 1,128,168.21-1,692,086.13-370,089.78

Finding the Fourth Proportional to 1,128,168.21, 1,692,086.13 and 370,089.78

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Solution

The fourth proportional to 1,128,168.21, 1,692,086.13 and 370,089.78 is: 555,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,168.21 : 1,692,086.13 = 370,089.78 : x
  2. Step 2: Convert to fraction form
    1,128,168.21/1,692,086.13 = 370,089.78/x
  3. Step 3: Cross multiply
    1,128,168.21x = 1,692,086.13 × 370,089.78
  4. Step 4: Simplify right side
    1,128,168.21x = 626,223,783,592.75
  5. Step 5: Solve for x
    x = 626,223,783,592.75/1,128,168.21
  6. Step 6: Final answer
    x = 555,080.15

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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.