Finding the Fourth Proportional to 1,252,869.84, 1,728,961.47 and 679,909.95
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Solution
The fourth proportional to 1,252,869.84, 1,728,961.47 and 679,909.95 is: 938,276.32
Step by Step Solution
- Step 1: Write the proportion equation
1,252,869.84 : 1,728,961.47 = 679,909.95 : x - Step 2: Convert to fraction form
1,252,869.84/1,728,961.47 = 679,909.95/x - Step 3: Cross multiply
1,252,869.84x = 1,728,961.47 × 679,909.95 - Step 4: Simplify right side
1,252,869.84x = 1,175,538,106,619.63 - Step 5: Solve for x
x = 1,175,538,106,619.63/1,252,869.84 - Step 6: Final answer
x = 938,276.32
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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.