Finding the Fourth Proportional to 989,352.02, 1,363,817.45 and 774,118.42
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Solution
The fourth proportional to 989,352.02, 1,363,817.45 and 774,118.42 is: 1,067,118.87
Step by Step Solution
- Step 1: Write the proportion equation
989,352.02 : 1,363,817.45 = 774,118.42 : x - Step 2: Convert to fraction form
989,352.02/1,363,817.45 = 774,118.42/x - Step 3: Cross multiply
989,352.02x = 1,363,817.45 × 774,118.42 - Step 4: Simplify right side
989,352.02x = 1,055,756,208,088.18 - Step 5: Solve for x
x = 1,055,756,208,088.18/989,352.02 - Step 6: Final answer
x = 1,067,118.87
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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.