Home / 674,464.86-1,012,417.52-290,403.77

Finding the Fourth Proportional to 674,464.86, 1,012,417.52 and 290,403.77

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Solution

The fourth proportional to 674,464.86, 1,012,417.52 and 290,403.77 is: 435,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,464.86 : 1,012,417.52 = 290,403.77 : x
  2. Step 2: Convert to fraction form
    674,464.86/1,012,417.52 = 290,403.77/x
  3. Step 3: Cross multiply
    674,464.86x = 1,012,417.52 × 290,403.77
  4. Step 4: Simplify right side
    674,464.86x = 294,009,858,107.94
  5. Step 5: Solve for x
    x = 294,009,858,107.94/674,464.86
  6. Step 6: Final answer
    x = 435,915.75

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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.