Home / 1,331,152.69-1,996,729.03-320,274.66

Finding the Fourth Proportional to 1,331,152.69, 1,996,729.03 and 320,274.66

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Solution

The fourth proportional to 1,331,152.69, 1,996,729.03 and 320,274.66 is: 480,411.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,152.69 : 1,996,729.03 = 320,274.66 : x
  2. Step 2: Convert to fraction form
    1,331,152.69/1,996,729.03 = 320,274.66/x
  3. Step 3: Cross multiply
    1,331,152.69x = 1,996,729.03 × 320,274.66
  4. Step 4: Simplify right side
    1,331,152.69x = 639,501,707,851.86
  5. Step 5: Solve for x
    x = 639,501,707,851.86/1,331,152.69
  6. Step 6: Final answer
    x = 480,411.99

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Similar ratio
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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.