Finding the Fourth Proportional to 907,979.16, 1,252,962.81 and 520,774.47
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Solution
The fourth proportional to 907,979.16, 1,252,962.81 and 520,774.47 is: 718,640.99
Step by Step Solution
- Step 1: Write the proportion equation
907,979.16 : 1,252,962.81 = 520,774.47 : x - Step 2: Convert to fraction form
907,979.16/1,252,962.81 = 520,774.47/x - Step 3: Cross multiply
907,979.16x = 1,252,962.81 × 520,774.47 - Step 4: Simplify right side
907,979.16x = 652,511,043,307.46 - Step 5: Solve for x
x = 652,511,043,307.46/907,979.16 - Step 6: Final answer
x = 718,640.99
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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.