Finding the Fourth Proportional to 605,603.40, 908,405.10 and 406,537.80
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Solution
The fourth proportional to 605,603.40, 908,405.10 and 406,537.80 is: 609,806.70
Step by Step Solution
- Step 1: Write the proportion equation
605,603.40 : 908,405.10 = 406,537.80 : x - Step 2: Convert to fraction form
605,603.40/908,405.10 = 406,537.80/x - Step 3: Cross multiply
605,603.40x = 908,405.10 × 406,537.80 - Step 4: Simplify right side
605,603.40x = 369,301,010,862.78 - Step 5: Solve for x
x = 369,301,010,862.78/605,603.40 - Step 6: Final answer
x = 609,806.70
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1.5x scale
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.