Finding the Fourth Proportional to 819,562.57, 1,228,642.65 and 314,485.99
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Solution
The fourth proportional to 819,562.57, 1,228,642.65 and 314,485.99 is: 471,459.91
Step by Step Solution
- Step 1: Write the proportion equation
819,562.57 : 1,228,642.65 = 314,485.99 : x - Step 2: Convert to fraction form
819,562.57/1,228,642.65 = 314,485.99/x - Step 3: Cross multiply
819,562.57x = 1,228,642.65 × 314,485.99 - Step 4: Simplify right side
819,562.57x = 386,390,898,569.04 - Step 5: Solve for x
x = 386,390,898,569.04/819,562.57 - Step 6: Final answer
x = 471,459.91
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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.