Home / 1,359,938.40-2,040,409.80-561,289.20

Finding the Fourth Proportional to 1,359,938.40, 2,040,409.80 and 561,289.20

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Solution

The fourth proportional to 1,359,938.40, 2,040,409.80 and 561,289.20 is: 842,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,938.40 : 2,040,409.80 = 561,289.20 : x
  2. Step 2: Convert to fraction form
    1,359,938.40/2,040,409.80 = 561,289.20/x
  3. Step 3: Cross multiply
    1,359,938.40x = 2,040,409.80 × 561,289.20
  4. Step 4: Simplify right side
    1,359,938.40x = 1,145,259,984,314.16
  5. Step 5: Solve for x
    x = 1,145,259,984,314.16/1,359,938.40
  6. Step 6: Final answer
    x = 842,141.07

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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.