Home / 1,424,658.20-1,966,028.08-780,078.28

Finding the Fourth Proportional to 1,424,658.20, 1,966,028.08 and 780,078.28

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Solution

The fourth proportional to 1,424,658.20, 1,966,028.08 and 780,078.28 is: 1,076,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,658.20 : 1,966,028.08 = 780,078.28 : x
  2. Step 2: Convert to fraction form
    1,424,658.20/1,966,028.08 = 780,078.28/x
  3. Step 3: Cross multiply
    1,424,658.20x = 1,966,028.08 × 780,078.28
  4. Step 4: Simplify right side
    1,424,658.20x = 1,533,655,803,078.10
  5. Step 5: Solve for x
    x = 1,533,655,803,078.10/1,424,658.20
  6. Step 6: Final answer
    x = 1,076,507.90

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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.