Finding the Fourth Proportional to 874,530.32, 1,207,153.86 and 512,070.70
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Solution
The fourth proportional to 874,530.32, 1,207,153.86 and 512,070.70 is: 706,834.41
Step by Step Solution
- Step 1: Write the proportion equation
874,530.32 : 1,207,153.86 = 512,070.70 : x - Step 2: Convert to fraction form
874,530.32/1,207,153.86 = 512,070.70/x - Step 3: Cross multiply
874,530.32x = 1,207,153.86 × 512,070.70 - Step 4: Simplify right side
874,530.32x = 618,148,122,097.90 - Step 5: Solve for x
x = 618,148,122,097.90/874,530.32 - Step 6: Final answer
x = 706,834.41
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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.