Finding the Fourth Proportional to 1,259,618.13, 1,889,428.55 and 312,988.84
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Solution
The fourth proportional to 1,259,618.13, 1,889,428.55 and 312,988.84 is: 469,483.60
Step by Step Solution
- Step 1: Write the proportion equation
1,259,618.13 : 1,889,428.55 = 312,988.84 : x - Step 2: Convert to fraction form
1,259,618.13/1,889,428.55 = 312,988.84/x - Step 3: Cross multiply
1,259,618.13x = 1,889,428.55 × 312,988.84 - Step 4: Simplify right side
1,259,618.13x = 591,370,050,127.38 - Step 5: Solve for x
x = 591,370,050,127.38/1,259,618.13 - Step 6: Final answer
x = 469,483.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.