Home / 743,403.75-1,115,101.98-210,925.77

Finding the Fourth Proportional to 743,403.75, 1,115,101.98 and 210,925.77

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Solution

The fourth proportional to 743,403.75, 1,115,101.98 and 210,925.77 is: 316,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,403.75 : 1,115,101.98 = 210,925.77 : x
  2. Step 2: Convert to fraction form
    743,403.75/1,115,101.98 = 210,925.77/x
  3. Step 3: Cross multiply
    743,403.75x = 1,115,101.98 × 210,925.77
  4. Step 4: Simplify right side
    743,403.75x = 235,203,743,760.03
  5. Step 5: Solve for x
    x = 235,203,743,760.03/743,403.75
  6. Step 6: Final answer
    x = 316,387.62

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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.