Home / 1,386,745.47-2,080,222.70-414,032.76

Finding the Fourth Proportional to 1,386,745.47, 2,080,222.70 and 414,032.76

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Solution

The fourth proportional to 1,386,745.47, 2,080,222.70 and 414,032.76 is: 621,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,745.47 : 2,080,222.70 = 414,032.76 : x
  2. Step 2: Convert to fraction form
    1,386,745.47/2,080,222.70 = 414,032.76/x
  3. Step 3: Cross multiply
    1,386,745.47x = 2,080,222.70 × 414,032.76
  4. Step 4: Simplify right side
    1,386,745.47x = 861,280,343,825.49
  5. Step 5: Solve for x
    x = 861,280,343,825.49/1,386,745.47
  6. Step 6: Final answer
    x = 621,080.34

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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.