Finding the Fourth Proportional to 903,959.12, 1,247,268.71 and 521,764.47
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Solution
The fourth proportional to 903,959.12, 1,247,268.71 and 521,764.47 is: 719,922.49
Step by Step Solution
- Step 1: Write the proportion equation
903,959.12 : 1,247,268.71 = 521,764.47 : x - Step 2: Convert to fraction form
903,959.12/1,247,268.71 = 521,764.47/x - Step 3: Cross multiply
903,959.12x = 1,247,268.71 × 521,764.47 - Step 4: Simplify right side
903,959.12x = 650,780,497,420.73 - Step 5: Solve for x
x = 650,780,497,420.73/903,959.12 - Step 6: Final answer
x = 719,922.49
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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.