Home / 1,154,858.50-1,593,715.05-638,647.12

Finding the Fourth Proportional to 1,154,858.50, 1,593,715.05 and 638,647.12

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Solution

The fourth proportional to 1,154,858.50, 1,593,715.05 and 638,647.12 is: 881,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,858.50 : 1,593,715.05 = 638,647.12 : x
  2. Step 2: Convert to fraction form
    1,154,858.50/1,593,715.05 = 638,647.12/x
  3. Step 3: Cross multiply
    1,154,858.50x = 1,593,715.05 × 638,647.12
  4. Step 4: Simplify right side
    1,154,858.50x = 1,017,821,515,621.35
  5. Step 5: Solve for x
    x = 1,017,821,515,621.35/1,154,858.50
  6. Step 6: Final answer
    x = 881,338.73

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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.