Home / 691,225-1,036,837.50-165,913

Finding the Fourth Proportional to 691,225, 1,036,837.50 and 165,913

Calculator

Solution

The fourth proportional to 691,225, 1,036,837.50 and 165,913 is: 248,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,225 : 1,036,837.50 = 165,913 : x
  2. Step 2: Convert to fraction form
    691,225/1,036,837.50 = 165,913/x
  3. Step 3: Cross multiply
    691,225x = 1,036,837.50 × 165,913
  4. Step 4: Simplify right side
    691,225x = 172,024,820,137.50
  5. Step 5: Solve for x
    x = 172,024,820,137.50/691,225
  6. Step 6: Final answer
    x = 248,869.50

Related Problems

Find fourth proportional to 345,612.50, 518,418.75 and 82,956.50
Half scale
Find fourth proportional to 1,382,450, 2,073,675 and 331,826
Double scale
Find fourth proportional to 691,226, 1,036,839 and 165,914
Similar ratio
Find fourth proportional to 1,036,837.50, 1,555,256.25 and 248,869.50
1.5x scale

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.