Home / 1,092,139.60-1,638,209.40-619,747.60

Finding the Fourth Proportional to 1,092,139.60, 1,638,209.40 and 619,747.60

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Solution

The fourth proportional to 1,092,139.60, 1,638,209.40 and 619,747.60 is: 929,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,139.60 : 1,638,209.40 = 619,747.60 : x
  2. Step 2: Convert to fraction form
    1,092,139.60/1,638,209.40 = 619,747.60/x
  3. Step 3: Cross multiply
    1,092,139.60x = 1,638,209.40 × 619,747.60
  4. Step 4: Simplify right side
    1,092,139.60x = 1,015,276,343,947.44
  5. Step 5: Solve for x
    x = 1,015,276,343,947.44/1,092,139.60
  6. Step 6: Final answer
    x = 929,621.40

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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.