Home / 1,223,367.16-1,688,860.29-764,736.85

Finding the Fourth Proportional to 1,223,367.16, 1,688,860.29 and 764,736.85

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Solution

The fourth proportional to 1,223,367.16, 1,688,860.29 and 764,736.85 is: 1,055,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,367.16 : 1,688,860.29 = 764,736.85 : x
  2. Step 2: Convert to fraction form
    1,223,367.16/1,688,860.29 = 764,736.85/x
  3. Step 3: Cross multiply
    1,223,367.16x = 1,688,860.29 × 764,736.85
  4. Step 4: Simplify right side
    1,223,367.16x = 1,291,533,698,264.69
  5. Step 5: Solve for x
    x = 1,291,533,698,264.69/1,223,367.16
  6. Step 6: Final answer
    x = 1,055,720.43

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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.