Home / 876,930.80-1,315,007.40-403,372.40

Finding the Fourth Proportional to 876,930.80, 1,315,007.40 and 403,372.40

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Solution

The fourth proportional to 876,930.80, 1,315,007.40 and 403,372.40 is: 604,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,930.80 : 1,315,007.40 = 403,372.40 : x
  2. Step 2: Convert to fraction form
    876,930.80/1,315,007.40 = 403,372.40/x
  3. Step 3: Cross multiply
    876,930.80x = 1,315,007.40 × 403,372.40
  4. Step 4: Simplify right side
    876,930.80x = 530,437,690,955.76
  5. Step 5: Solve for x
    x = 530,437,690,955.76/876,930.80
  6. Step 6: Final answer
    x = 604,879.76

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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.