Home / 1,258,156.32-1,885,660.60-990,861.16

Finding the Fourth Proportional to 1,258,156.32, 1,885,660.60 and 990,861.16

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Solution

The fourth proportional to 1,258,156.32, 1,885,660.60 and 990,861.16 is: 1,485,052.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,156.32 : 1,885,660.60 = 990,861.16 : x
  2. Step 2: Convert to fraction form
    1,258,156.32/1,885,660.60 = 990,861.16/x
  3. Step 3: Cross multiply
    1,258,156.32x = 1,885,660.60 × 990,861.16
  4. Step 4: Simplify right side
    1,258,156.32x = 1,868,427,849,482.30
  5. Step 5: Solve for x
    x = 1,868,427,849,482.30/1,258,156.32
  6. Step 6: Final answer
    x = 1,485,052.23

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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.