Finding the Fourth Proportional to 918,963.11, 1,375,623.12 and 832,357.91
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Solution
The fourth proportional to 918,963.11, 1,375,623.12 and 832,357.91 is: 1,245,981.23
Step by Step Solution
- Step 1: Write the proportion equation
918,963.11 : 1,375,623.12 = 832,357.91 : x - Step 2: Convert to fraction form
918,963.11/1,375,623.12 = 832,357.91/x - Step 3: Cross multiply
918,963.11x = 1,375,623.12 × 832,357.91 - Step 4: Simplify right side
918,963.11x = 1,145,010,788,549.94 - Step 5: Solve for x
x = 1,145,010,788,549.94/918,963.11 - Step 6: Final answer
x = 1,245,981.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.