Home / 1,258,152.80-1,885,655.36-990,857.66

Finding the Fourth Proportional to 1,258,152.80, 1,885,655.36 and 990,857.66

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Solution

The fourth proportional to 1,258,152.80, 1,885,655.36 and 990,857.66 is: 1,485,047.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,152.80 : 1,885,655.36 = 990,857.66 : x
  2. Step 2: Convert to fraction form
    1,258,152.80/1,885,655.36 = 990,857.66/x
  3. Step 3: Cross multiply
    1,258,152.80x = 1,885,655.36 × 990,857.66
  4. Step 4: Simplify right side
    1,258,152.80x = 1,868,416,057,576.06
  5. Step 5: Solve for x
    x = 1,868,416,057,576.06/1,258,152.80
  6. Step 6: Final answer
    x = 1,485,047.01

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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.