Finding the Fourth Proportional to 645,124.70, 904,107.70 and 645,124.70
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Solution
The fourth proportional to 645,124.70, 904,107.70 and 645,124.70 is: 904,107.70
Step by Step Solution
- Step 1: Write the proportion equation
645,124.70 : 904,107.70 = 645,124.70 : x - Step 2: Convert to fraction form
645,124.70/904,107.70 = 645,124.70/x - Step 3: Cross multiply
645,124.70x = 904,107.70 × 645,124.70 - Step 4: Simplify right side
645,124.70x = 583,262,208,730.19 - Step 5: Solve for x
x = 583,262,208,730.19/645,124.70 - Step 6: Final answer
x = 904,107.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.