Home / 443,998.04-612,308.43-290,980.49

Finding the Fourth Proportional to 443,998.04, 612,308.43 and 290,980.49

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Solution

The fourth proportional to 443,998.04, 612,308.43 and 290,980.49 is: 401,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,998.04 : 612,308.43 = 290,980.49 : x
  2. Step 2: Convert to fraction form
    443,998.04/612,308.43 = 290,980.49/x
  3. Step 3: Cross multiply
    443,998.04x = 612,308.43 × 290,980.49
  4. Step 4: Simplify right side
    443,998.04x = 178,169,803,930.99
  5. Step 5: Solve for x
    x = 178,169,803,930.99/443,998.04
  6. Step 6: Final answer
    x = 401,285.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.