Finding the Fourth Proportional to 680,859.42, 939,588.66 and 408,931.93
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Solution
The fourth proportional to 680,859.42, 939,588.66 and 408,931.93 is: 564,327.66
Step by Step Solution
- Step 1: Write the proportion equation
680,859.42 : 939,588.66 = 408,931.93 : x - Step 2: Convert to fraction form
680,859.42/939,588.66 = 408,931.93/x - Step 3: Cross multiply
680,859.42x = 939,588.66 × 408,931.93 - Step 4: Simplify right side
680,859.42x = 384,227,804,139.91 - Step 5: Solve for x
x = 384,227,804,139.91/680,859.42 - Step 6: Final answer
x = 564,327.66
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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.