Finding the Fourth Proportional to 725,699.20, 1,087,641.60 and 370,854.40
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Solution
The fourth proportional to 725,699.20, 1,087,641.60 and 370,854.40 is: 555,817.99
Step by Step Solution
- Step 1: Write the proportion equation
725,699.20 : 1,087,641.60 = 370,854.40 : x - Step 2: Convert to fraction form
725,699.20/1,087,641.60 = 370,854.40/x - Step 3: Cross multiply
725,699.20x = 1,087,641.60 × 370,854.40 - Step 4: Simplify right side
725,699.20x = 403,356,672,983.04 - Step 5: Solve for x
x = 403,356,672,983.04/725,699.20 - Step 6: Final answer
x = 555,817.99
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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.