Home / 1,258,530-1,737,428.04-978,506.28

Finding the Fourth Proportional to 1,258,530, 1,737,428.04 and 978,506.28

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Solution

The fourth proportional to 1,258,530, 1,737,428.04 and 978,506.28 is: 1,350,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,530 : 1,737,428.04 = 978,506.28 : x
  2. Step 2: Convert to fraction form
    1,258,530/1,737,428.04 = 978,506.28/x
  3. Step 3: Cross multiply
    1,258,530x = 1,737,428.04 × 978,506.28
  4. Step 4: Simplify right side
    1,258,530x = 1,700,084,248,188.09
  5. Step 5: Solve for x
    x = 1,700,084,248,188.09/1,258,530
  6. Step 6: Final answer
    x = 1,350,849.20

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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.