Finding the Fourth Proportional to 969,271.97, 1,338,715.08 and 646,420.95
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Solution
The fourth proportional to 969,271.97, 1,338,715.08 and 646,420.95 is: 892,807.70
Step by Step Solution
- Step 1: Write the proportion equation
969,271.97 : 1,338,715.08 = 646,420.95 : x - Step 2: Convert to fraction form
969,271.97/1,338,715.08 = 646,420.95/x - Step 3: Cross multiply
969,271.97x = 1,338,715.08 × 646,420.95 - Step 4: Simplify right side
969,271.97x = 865,373,473,792.93 - Step 5: Solve for x
x = 865,373,473,792.93/969,271.97 - Step 6: Final answer
x = 892,807.70
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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.