Finding the Fourth Proportional to 813,989.25, 1,123,305.17 and 451,468.62
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Solution
The fourth proportional to 813,989.25, 1,123,305.17 and 451,468.62 is: 623,026.70
Step by Step Solution
- Step 1: Write the proportion equation
813,989.25 : 1,123,305.17 = 451,468.62 : x - Step 2: Convert to fraction form
813,989.25/1,123,305.17 = 451,468.62/x - Step 3: Cross multiply
813,989.25x = 1,123,305.17 × 451,468.62 - Step 4: Simplify right side
813,989.25x = 507,137,032,681.42 - Step 5: Solve for x
x = 507,137,032,681.42/813,989.25 - Step 6: Final answer
x = 623,026.70
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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.