Home / 1,200,328.18-1,798,651.65-815,587.05

Finding the Fourth Proportional to 1,200,328.18, 1,798,651.65 and 815,587.05

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Solution

The fourth proportional to 1,200,328.18, 1,798,651.65 and 815,587.05 is: 1,222,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,328.18 : 1,798,651.65 = 815,587.05 : x
  2. Step 2: Convert to fraction form
    1,200,328.18/1,798,651.65 = 815,587.05/x
  3. Step 3: Cross multiply
    1,200,328.18x = 1,798,651.65 × 815,587.05
  4. Step 4: Simplify right side
    1,200,328.18x = 1,466,956,993,201.13
  5. Step 5: Solve for x
    x = 1,466,956,993,201.13/1,200,328.18
  6. Step 6: Final answer
    x = 1,222,129.93

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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.