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Finding the Fourth Proportional to 972,080.80, 1,362,312.80 and 972,080.80

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Solution

The fourth proportional to 972,080.80, 1,362,312.80 and 972,080.80 is: 1,362,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,080.80 : 1,362,312.80 = 972,080.80 : x
  2. Step 2: Convert to fraction form
    972,080.80/1,362,312.80 = 972,080.80/x
  3. Step 3: Cross multiply
    972,080.80x = 1,362,312.80 × 972,080.80
  4. Step 4: Simplify right side
    972,080.80x = 1,324,278,116,474.24
  5. Step 5: Solve for x
    x = 1,324,278,116,474.24/972,080.80
  6. Step 6: Final answer
    x = 1,362,312.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.