Home / 1,386,512.40-2,079,768.60-488,967.60

Finding the Fourth Proportional to 1,386,512.40, 2,079,768.60 and 488,967.60

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Solution

The fourth proportional to 1,386,512.40, 2,079,768.60 and 488,967.60 is: 733,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,512.40 : 2,079,768.60 = 488,967.60 : x
  2. Step 2: Convert to fraction form
    1,386,512.40/2,079,768.60 = 488,967.60/x
  3. Step 3: Cross multiply
    1,386,512.40x = 2,079,768.60 × 488,967.60
  4. Step 4: Simplify right side
    1,386,512.40x = 1,016,939,460,897.36
  5. Step 5: Solve for x
    x = 1,016,939,460,897.36/1,386,512.40
  6. Step 6: Final answer
    x = 733,451.40

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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.