Home / 1,140,751.40-1,574,236.94-631,453.78

Finding the Fourth Proportional to 1,140,751.40, 1,574,236.94 and 631,453.78

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Solution

The fourth proportional to 1,140,751.40, 1,574,236.94 and 631,453.78 is: 871,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,751.40 : 1,574,236.94 = 631,453.78 : x
  2. Step 2: Convert to fraction form
    1,140,751.40/1,574,236.94 = 631,453.78/x
  3. Step 3: Cross multiply
    1,140,751.40x = 1,574,236.94 × 631,453.78
  4. Step 4: Simplify right side
    1,140,751.40x = 994,057,866,378.63
  5. Step 5: Solve for x
    x = 994,057,866,378.63/1,140,751.40
  6. Step 6: Final answer
    x = 871,406.22

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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.