Finding the Fourth Proportional to 768,772.13, 1,060,971.14 and 429,305.99
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Solution
The fourth proportional to 768,772.13, 1,060,971.14 and 429,305.99 is: 592,478.90
Step by Step Solution
- Step 1: Write the proportion equation
768,772.13 : 1,060,971.14 = 429,305.99 : x - Step 2: Convert to fraction form
768,772.13/1,060,971.14 = 429,305.99/x - Step 3: Cross multiply
768,772.13x = 1,060,971.14 × 429,305.99 - Step 4: Simplify right side
768,772.13x = 455,481,265,619.13 - Step 5: Solve for x
x = 455,481,265,619.13/768,772.13 - Step 6: Final answer
x = 592,478.90
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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.