Home / 899,992.40-1,348,693.72-387,516.85

Finding the Fourth Proportional to 899,992.40, 1,348,693.72 and 387,516.85

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Solution

The fourth proportional to 899,992.40, 1,348,693.72 and 387,516.85 is: 580,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,992.40 : 1,348,693.72 = 387,516.85 : x
  2. Step 2: Convert to fraction form
    899,992.40/1,348,693.72 = 387,516.85/x
  3. Step 3: Cross multiply
    899,992.40x = 1,348,693.72 × 387,516.85
  4. Step 4: Simplify right side
    899,992.40x = 522,641,537,648.66
  5. Step 5: Solve for x
    x = 522,641,537,648.66/899,992.40
  6. Step 6: Final answer
    x = 580,717.73

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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.