Home / 876,999.80-1,315,110.90-403,441.40

Finding the Fourth Proportional to 876,999.80, 1,315,110.90 and 403,441.40

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Solution

The fourth proportional to 876,999.80, 1,315,110.90 and 403,441.40 is: 604,983.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,999.80 : 1,315,110.90 = 403,441.40 : x
  2. Step 2: Convert to fraction form
    876,999.80/1,315,110.90 = 403,441.40/x
  3. Step 3: Cross multiply
    876,999.80x = 1,315,110.90 × 403,441.40
  4. Step 4: Simplify right side
    876,999.80x = 530,570,182,651.26
  5. Step 5: Solve for x
    x = 530,570,182,651.26/876,999.80
  6. Step 6: Final answer
    x = 604,983.24

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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.