Finding the Fourth Proportional to 690,418.27, 953,149.98 and 484,318.12
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Solution
The fourth proportional to 690,418.27, 953,149.98 and 484,318.12 is: 668,620.50
Step by Step Solution
- Step 1: Write the proportion equation
690,418.27 : 953,149.98 = 484,318.12 : x - Step 2: Convert to fraction form
690,418.27/953,149.98 = 484,318.12/x - Step 3: Cross multiply
690,418.27x = 953,149.98 × 484,318.12 - Step 4: Simplify right side
690,418.27x = 461,627,804,008.76 - Step 5: Solve for x
x = 461,627,804,008.76/690,418.27 - Step 6: Final answer
x = 668,620.50
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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.