Finding the Fourth Proportional to 1,938,988.40, 2,908,829.07 and 659,530.49
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Solution
The fourth proportional to 1,938,988.40, 2,908,829.07 and 659,530.49 is: 989,413.58
Step by Step Solution
- Step 1: Write the proportion equation
1,938,988.40 : 2,908,829.07 = 659,530.49 : x - Step 2: Convert to fraction form
1,938,988.40/2,908,829.07 = 659,530.49/x - Step 3: Cross multiply
1,938,988.40x = 2,908,829.07 × 659,530.49 - Step 4: Simplify right side
1,938,988.40x = 1,918,461,447,319.20 - Step 5: Solve for x
x = 1,918,461,447,319.20/1,938,988.40 - Step 6: Final answer
x = 989,413.58
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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.