Finding the Fourth Proportional to 665,762.84, 918,686.80 and 379,265.84
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Solution
The fourth proportional to 665,762.84, 918,686.80 and 379,265.84 is: 523,349.31
Step by Step Solution
- Step 1: Write the proportion equation
665,762.84 : 918,686.80 = 379,265.84 : x - Step 2: Convert to fraction form
665,762.84/918,686.80 = 379,265.84/x - Step 3: Cross multiply
665,762.84x = 918,686.80 × 379,265.84 - Step 4: Simplify right side
665,762.84x = 348,426,520,898.91 - Step 5: Solve for x
x = 348,426,520,898.91/665,762.84 - Step 6: Final answer
x = 523,349.31
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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.