Finding the Fourth Proportional to 2,121,564.84, 2,927,759.31 and 1,154,702.06
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Solution
The fourth proportional to 2,121,564.84, 2,927,759.31 and 1,154,702.06 is: 1,593,488.75
Step by Step Solution
- Step 1: Write the proportion equation
2,121,564.84 : 2,927,759.31 = 1,154,702.06 : x - Step 2: Convert to fraction form
2,121,564.84/2,927,759.31 = 1,154,702.06/x - Step 3: Cross multiply
2,121,564.84x = 2,927,759.31 × 1,154,702.06 - Step 4: Simplify right side
2,121,564.84x = 3,380,689,706,441.18 - Step 5: Solve for x
x = 3,380,689,706,441.18/2,121,564.84 - Step 6: Final answer
x = 1,593,488.75
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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.