Finding the Fourth Proportional to 645,136.70, 904,124.50 and 645,136.70
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Solution
The fourth proportional to 645,136.70, 904,124.50 and 645,136.70 is: 904,124.50
Step by Step Solution
- Step 1: Write the proportion equation
645,136.70 : 904,124.50 = 645,136.70 : x - Step 2: Convert to fraction form
645,136.70/904,124.50 = 645,136.70/x - Step 3: Cross multiply
645,136.70x = 904,124.50 × 645,136.70 - Step 4: Simplify right side
645,136.70x = 583,283,896,319.15 - Step 5: Solve for x
x = 583,283,896,319.15/645,136.70 - Step 6: Final answer
x = 904,124.50
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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.