Home / 889,239.78-1,333,879.52-320,666.76

Finding the Fourth Proportional to 889,239.78, 1,333,879.52 and 320,666.76

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Solution

The fourth proportional to 889,239.78, 1,333,879.52 and 320,666.76 is: 481,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,239.78 : 1,333,879.52 = 320,666.76 : x
  2. Step 2: Convert to fraction form
    889,239.78/1,333,879.52 = 320,666.76/x
  3. Step 3: Cross multiply
    889,239.78x = 1,333,879.52 × 320,666.76
  4. Step 4: Simplify right side
    889,239.78x = 427,730,822,305.42
  5. Step 5: Solve for x
    x = 427,730,822,305.42/889,239.78
  6. Step 6: Final answer
    x = 481,007.30

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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.