Finding the Fourth Proportional to 930,645.05, 1,284,090.95 and 543,284.66
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Solution
The fourth proportional to 930,645.05, 1,284,090.95 and 543,284.66 is: 749,616.53
Step by Step Solution
- Step 1: Write the proportion equation
930,645.05 : 1,284,090.95 = 543,284.66 : x - Step 2: Convert to fraction form
930,645.05/1,284,090.95 = 543,284.66/x - Step 3: Cross multiply
930,645.05x = 1,284,090.95 × 543,284.66 - Step 4: Simplify right side
930,645.05x = 697,626,909,253.18 - Step 5: Solve for x
x = 697,626,909,253.18/930,645.05 - Step 6: Final answer
x = 749,616.53
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1.5x scale
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.