Finding the Fourth Proportional to 876,729.69, 1,209,875.03 and 489,551.09
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Solution
The fourth proportional to 876,729.69, 1,209,875.03 and 489,551.09 is: 675,573.83
Step by Step Solution
- Step 1: Write the proportion equation
876,729.69 : 1,209,875.03 = 489,551.09 : x - Step 2: Convert to fraction form
876,729.69/1,209,875.03 = 489,551.09/x - Step 3: Cross multiply
876,729.69x = 1,209,875.03 × 489,551.09 - Step 4: Simplify right side
876,729.69x = 592,295,637,252.53 - Step 5: Solve for x
x = 592,295,637,252.53/876,729.69 - Step 6: Final answer
x = 675,573.83
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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.