Finding the Fourth Proportional to 861,937.98, 1,292,906.94 and 406,423.19
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Solution
The fourth proportional to 861,937.98, 1,292,906.94 and 406,423.19 is: 609,634.76
Step by Step Solution
- Step 1: Write the proportion equation
861,937.98 : 1,292,906.94 = 406,423.19 : x - Step 2: Convert to fraction form
861,937.98/1,292,906.94 = 406,423.19/x - Step 3: Cross multiply
861,937.98x = 1,292,906.94 × 406,423.19 - Step 4: Simplify right side
861,937.98x = 525,467,356,463.40 - Step 5: Solve for x
x = 525,467,356,463.40/861,937.98 - Step 6: Final answer
x = 609,634.76
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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.