Home / 1,128,750.45-1,692,684.63-408,921.27

Finding the Fourth Proportional to 1,128,750.45, 1,692,684.63 and 408,921.27

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Solution

The fourth proportional to 1,128,750.45, 1,692,684.63 and 408,921.27 is: 613,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,750.45 : 1,692,684.63 = 408,921.27 : x
  2. Step 2: Convert to fraction form
    1,128,750.45/1,692,684.63 = 408,921.27/x
  3. Step 3: Cross multiply
    1,128,750.45x = 1,692,684.63 × 408,921.27
  4. Step 4: Simplify right side
    1,128,750.45x = 692,174,748,609.08
  5. Step 5: Solve for x
    x = 692,174,748,609.08/1,128,750.45
  6. Step 6: Final answer
    x = 613,222.12

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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.