Home / 521,989-720,345.54-283,525

Finding the Fourth Proportional to 521,989, 720,345.54 and 283,525

Calculator

Solution

The fourth proportional to 521,989, 720,345.54 and 283,525 is: 391,264.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,989 : 720,345.54 = 283,525 : x
  2. Step 2: Convert to fraction form
    521,989/720,345.54 = 283,525/x
  3. Step 3: Cross multiply
    521,989x = 720,345.54 × 283,525
  4. Step 4: Simplify right side
    521,989x = 204,235,969,228.50
  5. Step 5: Solve for x
    x = 204,235,969,228.50/521,989
  6. Step 6: Final answer
    x = 391,264.89

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.