Finding the Fourth Proportional to 879,640.24, 1,213,908.78 and 497,746.84
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Solution
The fourth proportional to 879,640.24, 1,213,908.78 and 497,746.84 is: 686,893.61
Step by Step Solution
- Step 1: Write the proportion equation
879,640.24 : 1,213,908.78 = 497,746.84 : x - Step 2: Convert to fraction form
879,640.24/1,213,908.78 = 497,746.84/x - Step 3: Cross multiply
879,640.24x = 1,213,908.78 × 497,746.84 - Step 4: Simplify right side
879,640.24x = 604,219,259,293.26 - Step 5: Solve for x
x = 604,219,259,293.26/879,640.24 - Step 6: Final answer
x = 686,893.61
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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.