Home / 1,258,140.30-1,885,636.62-990,845.16

Finding the Fourth Proportional to 1,258,140.30, 1,885,636.62 and 990,845.16

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Solution

The fourth proportional to 1,258,140.30, 1,885,636.62 and 990,845.16 is: 1,485,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,140.30 : 1,885,636.62 = 990,845.16 : x
  2. Step 2: Convert to fraction form
    1,258,140.30/1,885,636.62 = 990,845.16/x
  3. Step 3: Cross multiply
    1,258,140.30x = 1,885,636.62 × 990,845.16
  4. Step 4: Simplify right side
    1,258,140.30x = 1,868,373,918,445.76
  5. Step 5: Solve for x
    x = 1,868,373,918,445.76/1,258,140.30
  6. Step 6: Final answer
    x = 1,485,028.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.