Home / 1,819,128.96-2,729,030.40-620,985.60

Finding the Fourth Proportional to 1,819,128.96, 2,729,030.40 and 620,985.60

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Solution

The fourth proportional to 1,819,128.96, 2,729,030.40 and 620,985.60 is: 931,593.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,128.96 : 2,729,030.40 = 620,985.60 : x
  2. Step 2: Convert to fraction form
    1,819,128.96/2,729,030.40 = 620,985.60/x
  3. Step 3: Cross multiply
    1,819,128.96x = 2,729,030.40 × 620,985.60
  4. Step 4: Simplify right side
    1,819,128.96x = 1,694,688,580,362.24
  5. Step 5: Solve for x
    x = 1,694,688,580,362.24/1,819,128.96
  6. Step 6: Final answer
    x = 931,593.43

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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.