Home / 1,077,830.40-1,618,495.20-605,438.40

Finding the Fourth Proportional to 1,077,830.40, 1,618,495.20 and 605,438.40

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Solution

The fourth proportional to 1,077,830.40, 1,618,495.20 and 605,438.40 is: 909,140.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,830.40 : 1,618,495.20 = 605,438.40 : x
  2. Step 2: Convert to fraction form
    1,077,830.40/1,618,495.20 = 605,438.40/x
  3. Step 3: Cross multiply
    1,077,830.40x = 1,618,495.20 × 605,438.40
  4. Step 4: Simplify right side
    1,077,830.40x = 979,899,144,295.68
  5. Step 5: Solve for x
    x = 979,899,144,295.68/1,077,830.40
  6. Step 6: Final answer
    x = 909,140.38

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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.