Home / 1,218,955.37-1,821,020.37-788,988.41

Finding the Fourth Proportional to 1,218,955.37, 1,821,020.37 and 788,988.41

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Solution

The fourth proportional to 1,218,955.37, 1,821,020.37 and 788,988.41 is: 1,178,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,955.37 : 1,821,020.37 = 788,988.41 : x
  2. Step 2: Convert to fraction form
    1,218,955.37/1,821,020.37 = 788,988.41/x
  3. Step 3: Cross multiply
    1,218,955.37x = 1,821,020.37 × 788,988.41
  4. Step 4: Simplify right side
    1,218,955.37x = 1,436,763,966,303.91
  5. Step 5: Solve for x
    x = 1,436,763,966,303.91/1,218,955.37
  6. Step 6: Final answer
    x = 1,178,684.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.