Home / 1,378,563.23-1,902,135.66-805,492.64

Finding the Fourth Proportional to 1,378,563.23, 1,902,135.66 and 805,492.64

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Solution

The fourth proportional to 1,378,563.23, 1,902,135.66 and 805,492.64 is: 1,111,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,563.23 : 1,902,135.66 = 805,492.64 : x
  2. Step 2: Convert to fraction form
    1,378,563.23/1,902,135.66 = 805,492.64/x
  3. Step 3: Cross multiply
    1,378,563.23x = 1,902,135.66 × 805,492.64
  4. Step 4: Simplify right side
    1,378,563.23x = 1,532,156,264,900.86
  5. Step 5: Solve for x
    x = 1,532,156,264,900.86/1,378,563.23
  6. Step 6: Final answer
    x = 1,111,415.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.