Home / 876,989.80-1,315,095.90-403,820.20

Finding the Fourth Proportional to 876,989.80, 1,315,095.90 and 403,820.20

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Solution

The fourth proportional to 876,989.80, 1,315,095.90 and 403,820.20 is: 605,551.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,989.80 : 1,315,095.90 = 403,820.20 : x
  2. Step 2: Convert to fraction form
    876,989.80/1,315,095.90 = 403,820.20/x
  3. Step 3: Cross multiply
    876,989.80x = 1,315,095.90 × 403,820.20
  4. Step 4: Simplify right side
    876,989.80x = 531,062,289,357.18
  5. Step 5: Solve for x
    x = 531,062,289,357.18/876,989.80
  6. Step 6: Final answer
    x = 605,551.27

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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.