Home / 1,258,370.64-1,885,979.70-991,075.50

Finding the Fourth Proportional to 1,258,370.64, 1,885,979.70 and 991,075.50

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Solution

The fourth proportional to 1,258,370.64, 1,885,979.70 and 991,075.50 is: 1,485,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,370.64 : 1,885,979.70 = 991,075.50 : x
  2. Step 2: Convert to fraction form
    1,258,370.64/1,885,979.70 = 991,075.50/x
  3. Step 3: Cross multiply
    1,258,370.64x = 1,885,979.70 × 991,075.50
  4. Step 4: Simplify right side
    1,258,370.64x = 1,869,148,274,167.35
  5. Step 5: Solve for x
    x = 1,869,148,274,167.35/1,258,370.64
  6. Step 6: Final answer
    x = 1,485,371.81

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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.