Home / 1,492,128.20-2,240,525.10-862,272.20

Finding the Fourth Proportional to 1,492,128.20, 2,240,525.10 and 862,272.20

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Solution

The fourth proportional to 1,492,128.20, 2,240,525.10 and 862,272.20 is: 1,294,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,128.20 : 2,240,525.10 = 862,272.20 : x
  2. Step 2: Convert to fraction form
    1,492,128.20/2,240,525.10 = 862,272.20/x
  3. Step 3: Cross multiply
    1,492,128.20x = 2,240,525.10 × 862,272.20
  4. Step 4: Simplify right side
    1,492,128.20x = 1,931,942,507,132.22
  5. Step 5: Solve for x
    x = 1,931,942,507,132.22/1,492,128.20
  6. Step 6: Final answer
    x = 1,294,756.38

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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.