Finding the Fourth Proportional to 643,027.84, 887,296.84 and 352,562.96
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Solution
The fourth proportional to 643,027.84, 887,296.84 and 352,562.96 is: 486,492.16
Step by Step Solution
- Step 1: Write the proportion equation
643,027.84 : 887,296.84 = 352,562.96 : x - Step 2: Convert to fraction form
643,027.84/887,296.84 = 352,562.96/x - Step 3: Cross multiply
643,027.84x = 887,296.84 × 352,562.96 - Step 4: Simplify right side
643,027.84x = 312,828,001,645.88 - Step 5: Solve for x
x = 312,828,001,645.88/643,027.84 - Step 6: Final answer
x = 486,492.16
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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.