Home / 1,000,623.69-1,501,533.56-919,221.46

Finding the Fourth Proportional to 1,000,623.69, 1,501,533.56 and 919,221.46

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Solution

The fourth proportional to 1,000,623.69, 1,501,533.56 and 919,221.46 is: 1,379,381.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,623.69 : 1,501,533.56 = 919,221.46 : x
  2. Step 2: Convert to fraction form
    1,000,623.69/1,501,533.56 = 919,221.46/x
  3. Step 3: Cross multiply
    1,000,623.69x = 1,501,533.56 × 919,221.46
  4. Step 4: Simplify right side
    1,000,623.69x = 1,380,241,866,666.09
  5. Step 5: Solve for x
    x = 1,380,241,866,666.09/1,000,623.69
  6. Step 6: Final answer
    x = 1,379,381.56

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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.