Home / 901,814.85-1,352,403.21-261,985.47

Finding the Fourth Proportional to 901,814.85, 1,352,403.21 and 261,985.47

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Solution

The fourth proportional to 901,814.85, 1,352,403.21 and 261,985.47 is: 392,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,814.85 : 1,352,403.21 = 261,985.47 : x
  2. Step 2: Convert to fraction form
    901,814.85/1,352,403.21 = 261,985.47/x
  3. Step 3: Cross multiply
    901,814.85x = 1,352,403.21 × 261,985.47
  4. Step 4: Simplify right side
    901,814.85x = 354,309,990,601.36
  5. Step 5: Solve for x
    x = 354,309,990,601.36/901,814.85
  6. Step 6: Final answer
    x = 392,885.51

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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.