Finding the Fourth Proportional to 754,315.80, 1,131,473.70 and 719,323.80
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Solution
The fourth proportional to 754,315.80, 1,131,473.70 and 719,323.80 is: 1,078,985.70
Step by Step Solution
- Step 1: Write the proportion equation
754,315.80 : 1,131,473.70 = 719,323.80 : x - Step 2: Convert to fraction form
754,315.80/1,131,473.70 = 719,323.80/x - Step 3: Cross multiply
754,315.80x = 1,131,473.70 × 719,323.80 - Step 4: Simplify right side
754,315.80x = 813,895,961,484.06 - Step 5: Solve for x
x = 813,895,961,484.06/754,315.80 - Step 6: Final answer
x = 1,078,985.70
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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.