Home / 543,336.30-815,004.45-490,192.20

Finding the Fourth Proportional to 543,336.30, 815,004.45 and 490,192.20

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Solution

The fourth proportional to 543,336.30, 815,004.45 and 490,192.20 is: 735,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,336.30 : 815,004.45 = 490,192.20 : x
  2. Step 2: Convert to fraction form
    543,336.30/815,004.45 = 490,192.20/x
  3. Step 3: Cross multiply
    543,336.30x = 815,004.45 × 490,192.20
  4. Step 4: Simplify right side
    543,336.30x = 399,508,824,355.29
  5. Step 5: Solve for x
    x = 399,508,824,355.29/543,336.30
  6. Step 6: Final answer
    x = 735,288.30

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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.