Home / 972,028.80-1,458,043.20-939,369.60

Finding the Fourth Proportional to 972,028.80, 1,458,043.20 and 939,369.60

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Solution

The fourth proportional to 972,028.80, 1,458,043.20 and 939,369.60 is: 1,409,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,028.80 : 1,458,043.20 = 939,369.60 : x
  2. Step 2: Convert to fraction form
    972,028.80/1,458,043.20 = 939,369.60/x
  3. Step 3: Cross multiply
    972,028.80x = 1,458,043.20 × 939,369.60
  4. Step 4: Simplify right side
    972,028.80x = 1,369,641,457,566.72
  5. Step 5: Solve for x
    x = 1,369,641,457,566.72/972,028.80
  6. Step 6: Final answer
    x = 1,409,054.40

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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.