Home / 1,375,864.79-1,898,629.57-764,056.40

Finding the Fourth Proportional to 1,375,864.79, 1,898,629.57 and 764,056.40

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Solution

The fourth proportional to 1,375,864.79, 1,898,629.57 and 764,056.40 is: 1,054,362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,864.79 : 1,898,629.57 = 764,056.40 : x
  2. Step 2: Convert to fraction form
    1,375,864.79/1,898,629.57 = 764,056.40/x
  3. Step 3: Cross multiply
    1,375,864.79x = 1,898,629.57 × 764,056.40
  4. Step 4: Simplify right side
    1,375,864.79x = 1,450,660,065,649.67
  5. Step 5: Solve for x
    x = 1,450,660,065,649.67/1,375,864.79
  6. Step 6: Final answer
    x = 1,054,362.38

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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.