Home / 1,427,289.34-2,140,934.01-480,580.78

Finding the Fourth Proportional to 1,427,289.34, 2,140,934.01 and 480,580.78

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Solution

The fourth proportional to 1,427,289.34, 2,140,934.01 and 480,580.78 is: 720,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,289.34 : 2,140,934.01 = 480,580.78 : x
  2. Step 2: Convert to fraction form
    1,427,289.34/2,140,934.01 = 480,580.78/x
  3. Step 3: Cross multiply
    1,427,289.34x = 2,140,934.01 × 480,580.78
  4. Step 4: Simplify right side
    1,427,289.34x = 1,028,891,736,454.33
  5. Step 5: Solve for x
    x = 1,028,891,736,454.33/1,427,289.34
  6. Step 6: Final answer
    x = 720,871.17

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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.