Finding the Fourth Proportional to 842,990.56, 1,164,636.84 and 706,813.36
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Solution
The fourth proportional to 842,990.56, 1,164,636.84 and 706,813.36 is: 976,500.71
Step by Step Solution
- Step 1: Write the proportion equation
842,990.56 : 1,164,636.84 = 706,813.36 : x - Step 2: Convert to fraction form
842,990.56/1,164,636.84 = 706,813.36/x - Step 3: Cross multiply
842,990.56x = 1,164,636.84 × 706,813.36 - Step 4: Simplify right side
842,990.56x = 823,180,878,060.18 - Step 5: Solve for x
x = 823,180,878,060.18/842,990.56 - Step 6: Final answer
x = 976,500.71
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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.