Finding the Fourth Proportional to 903,289.19, 1,246,449.25 and 521,438.99
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Solution
The fourth proportional to 903,289.19, 1,246,449.25 and 521,438.99 is: 719,533.95
Step by Step Solution
- Step 1: Write the proportion equation
903,289.19 : 1,246,449.25 = 521,438.99 : x - Step 2: Convert to fraction form
903,289.19/1,246,449.25 = 521,438.99/x - Step 3: Cross multiply
903,289.19x = 1,246,449.25 × 521,438.99 - Step 4: Simplify right side
903,289.19x = 649,947,238,006.26 - Step 5: Solve for x
x = 649,947,238,006.26/903,289.19 - Step 6: Final answer
x = 719,533.95
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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.