Home / 990,427.93-1,368,072.64-819,038.18

Finding the Fourth Proportional to 990,427.93, 1,368,072.64 and 819,038.18

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Solution

The fourth proportional to 990,427.93, 1,368,072.64 and 819,038.18 is: 1,131,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,427.93 : 1,368,072.64 = 819,038.18 : x
  2. Step 2: Convert to fraction form
    990,427.93/1,368,072.64 = 819,038.18/x
  3. Step 3: Cross multiply
    990,427.93x = 1,368,072.64 × 819,038.18
  4. Step 4: Simplify right side
    990,427.93x = 1,120,503,729,617.37
  5. Step 5: Solve for x
    x = 1,120,503,729,617.37/990,427.93
  6. Step 6: Final answer
    x = 1,131,332.93

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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.