Home / 1,138,968-1,571,808.65-629,703.18

Finding the Fourth Proportional to 1,138,968, 1,571,808.65 and 629,703.18

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Solution

The fourth proportional to 1,138,968, 1,571,808.65 and 629,703.18 is: 869,008.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,968 : 1,571,808.65 = 629,703.18 : x
  2. Step 2: Convert to fraction form
    1,138,968/1,571,808.65 = 629,703.18/x
  3. Step 3: Cross multiply
    1,138,968x = 1,571,808.65 × 629,703.18
  4. Step 4: Simplify right side
    1,138,968x = 989,772,902,107.99
  5. Step 5: Solve for x
    x = 989,772,902,107.99/1,138,968
  6. Step 6: Final answer
    x = 869,008.53

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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.