Home / 960,019.20-1,440,028.80-919,065.60

Finding the Fourth Proportional to 960,019.20, 1,440,028.80 and 919,065.60

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Solution

The fourth proportional to 960,019.20, 1,440,028.80 and 919,065.60 is: 1,378,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,019.20 : 1,440,028.80 = 919,065.60 : x
  2. Step 2: Convert to fraction form
    960,019.20/1,440,028.80 = 919,065.60/x
  3. Step 3: Cross multiply
    960,019.20x = 1,440,028.80 × 919,065.60
  4. Step 4: Simplify right side
    960,019.20x = 1,323,480,933,089.28
  5. Step 5: Solve for x
    x = 1,323,480,933,089.28/960,019.20
  6. Step 6: Final answer
    x = 1,378,598.40

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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.