Home / 1,348,863.60-2,021,999.40-779,660.40

Finding the Fourth Proportional to 1,348,863.60, 2,021,999.40 and 779,660.40

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Solution

The fourth proportional to 1,348,863.60, 2,021,999.40 and 779,660.40 is: 1,168,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,863.60 : 2,021,999.40 = 779,660.40 : x
  2. Step 2: Convert to fraction form
    1,348,863.60/2,021,999.40 = 779,660.40/x
  3. Step 3: Cross multiply
    1,348,863.60x = 2,021,999.40 × 779,660.40
  4. Step 4: Simplify right side
    1,348,863.60x = 1,576,472,861,003.76
  5. Step 5: Solve for x
    x = 1,576,472,861,003.76/1,348,863.60
  6. Step 6: Final answer
    x = 1,168,741.50

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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.