Home / 1,315,039.76-1,972,362.35-416,365.01

Finding the Fourth Proportional to 1,315,039.76, 1,972,362.35 and 416,365.01

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Solution

The fourth proportional to 1,315,039.76, 1,972,362.35 and 416,365.01 is: 624,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,039.76 : 1,972,362.35 = 416,365.01 : x
  2. Step 2: Convert to fraction form
    1,315,039.76/1,972,362.35 = 416,365.01/x
  3. Step 3: Cross multiply
    1,315,039.76x = 1,972,362.35 × 416,365.01
  4. Step 4: Simplify right side
    1,315,039.76x = 821,222,668,156.83
  5. Step 5: Solve for x
    x = 821,222,668,156.83/1,315,039.76
  6. Step 6: Final answer
    x = 624,485.05

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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.