Finding the Fourth Proportional to 3,398,702.24, 4,689,660.30 and 1,948,130.75
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Solution
The fourth proportional to 3,398,702.24, 4,689,660.30 and 1,948,130.75 is: 2,688,105.87
Step by Step Solution
- Step 1: Write the proportion equation
3,398,702.24 : 4,689,660.30 = 1,948,130.75 : x - Step 2: Convert to fraction form
3,398,702.24/4,689,660.30 = 1,948,130.75/x - Step 3: Cross multiply
3,398,702.24x = 4,689,660.30 × 1,948,130.75 - Step 4: Simplify right side
3,398,702.24x = 9,136,071,437,484.23 - Step 5: Solve for x
x = 9,136,071,437,484.23/3,398,702.24 - Step 6: Final answer
x = 2,688,105.87
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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.