Finding the Fourth Proportional to 861,935.97, 1,292,903.94 and 406,421.18
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Solution
The fourth proportional to 861,935.97, 1,292,903.94 and 406,421.18 is: 609,631.76
Step by Step Solution
- Step 1: Write the proportion equation
861,935.97 : 1,292,903.94 = 406,421.18 : x - Step 2: Convert to fraction form
861,935.97/1,292,903.94 = 406,421.18/x - Step 3: Cross multiply
861,935.97x = 1,292,903.94 × 406,421.18 - Step 4: Simplify right side
861,935.97x = 525,463,544,829.40 - Step 5: Solve for x
x = 525,463,544,829.40/861,935.97 - Step 6: Final answer
x = 609,631.76
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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.