Finding the Fourth Proportional to 728,209.84, 1,005,286.18 and 564,504.70
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Solution
The fourth proportional to 728,209.84, 1,005,286.18 and 564,504.70 is: 779,292.92
Step by Step Solution
- Step 1: Write the proportion equation
728,209.84 : 1,005,286.18 = 564,504.70 : x - Step 2: Convert to fraction form
728,209.84/1,005,286.18 = 564,504.70/x - Step 3: Cross multiply
728,209.84x = 1,005,286.18 × 564,504.70 - Step 4: Simplify right side
728,209.84x = 567,488,773,455.05 - Step 5: Solve for x
x = 567,488,773,455.05/728,209.84 - Step 6: Final answer
x = 779,292.92
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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.