Finding the Fourth Proportional to 916,405.24, 1,264,646.12 and 508,508.68
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Solution
The fourth proportional to 916,405.24, 1,264,646.12 and 508,508.68 is: 701,745.80
Step by Step Solution
- Step 1: Write the proportion equation
916,405.24 : 1,264,646.12 = 508,508.68 : x - Step 2: Convert to fraction form
916,405.24/1,264,646.12 = 508,508.68/x - Step 3: Cross multiply
916,405.24x = 1,264,646.12 × 508,508.68 - Step 4: Simplify right side
916,405.24x = 643,083,529,148.32 - Step 5: Solve for x
x = 643,083,529,148.32/916,405.24 - Step 6: Final answer
x = 701,745.80
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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.