Finding the Fourth Proportional to 903,288.19, 1,246,447.87 and 521,437.99
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Solution
The fourth proportional to 903,288.19, 1,246,447.87 and 521,437.99 is: 719,532.57
Step by Step Solution
- Step 1: Write the proportion equation
903,288.19 : 1,246,447.87 = 521,437.99 : x - Step 2: Convert to fraction form
903,288.19/1,246,447.87 = 521,437.99/x - Step 3: Cross multiply
903,288.19x = 1,246,447.87 × 521,437.99 - Step 4: Simplify right side
903,288.19x = 649,945,271,972.58 - Step 5: Solve for x
x = 649,945,271,972.58/903,288.19 - Step 6: Final answer
x = 719,532.57
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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.