Finding the Fourth Proportional to 1,129,968.90, 1,693,641.15 and 455,716.80
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Solution
The fourth proportional to 1,129,968.90, 1,693,641.15 and 455,716.80 is: 683,045.99
Step by Step Solution
- Step 1: Write the proportion equation
1,129,968.90 : 1,693,641.15 = 455,716.80 : x - Step 2: Convert to fraction form
1,129,968.90/1,693,641.15 = 455,716.80/x - Step 3: Cross multiply
1,129,968.90x = 1,693,641.15 × 455,716.80 - Step 4: Simplify right side
1,129,968.90x = 771,820,725,226.32 - Step 5: Solve for x
x = 771,820,725,226.32/1,129,968.90 - Step 6: Final answer
x = 683,045.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.