Finding the Fourth Proportional to 985,837.98, 1,359,829.95 and 646,327.98
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Solution
The fourth proportional to 985,837.98, 1,359,829.95 and 646,327.98 is: 891,521.90
Step by Step Solution
- Step 1: Write the proportion equation
985,837.98 : 1,359,829.95 = 646,327.98 : x - Step 2: Convert to fraction form
985,837.98/1,359,829.95 = 646,327.98/x - Step 3: Cross multiply
985,837.98x = 1,359,829.95 × 646,327.98 - Step 4: Simplify right side
985,837.98x = 878,896,144,727.00 - Step 5: Solve for x
x = 878,896,144,727.00/985,837.98 - Step 6: Final answer
x = 891,521.90
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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.