Home / 1,680,216.40-2,318,021.10-972,512.48

Finding the Fourth Proportional to 1,680,216.40, 2,318,021.10 and 972,512.48

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Solution

The fourth proportional to 1,680,216.40, 2,318,021.10 and 972,512.48 is: 1,341,675.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,216.40 : 2,318,021.10 = 972,512.48 : x
  2. Step 2: Convert to fraction form
    1,680,216.40/2,318,021.10 = 972,512.48/x
  3. Step 3: Cross multiply
    1,680,216.40x = 2,318,021.10 × 972,512.48
  4. Step 4: Simplify right side
    1,680,216.40x = 2,254,304,448,653.33
  5. Step 5: Solve for x
    x = 2,254,304,448,653.33/1,680,216.40
  6. Step 6: Final answer
    x = 1,341,675.07

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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.