Finding the Fourth Proportional to 702,783.60, 969,829.62 and 380,491.08
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Solution
The fourth proportional to 702,783.60, 969,829.62 and 380,491.08 is: 525,071.33
Step by Step Solution
- Step 1: Write the proportion equation
702,783.60 : 969,829.62 = 380,491.08 : x - Step 2: Convert to fraction form
702,783.60/969,829.62 = 380,491.08/x - Step 3: Cross multiply
702,783.60x = 969,829.62 × 380,491.08 - Step 4: Simplify right side
702,783.60x = 369,011,519,529.79 - Step 5: Solve for x
x = 369,011,519,529.79/702,783.60 - Step 6: Final answer
x = 525,071.33
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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.