Finding the Fourth Proportional to 1,368,073.49, 1,888,128.89 and 787,284.65
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Solution
The fourth proportional to 1,368,073.49, 1,888,128.89 and 787,284.65 is: 1,086,560.70
Step by Step Solution
- Step 1: Write the proportion equation
1,368,073.49 : 1,888,128.89 = 787,284.65 : x - Step 2: Convert to fraction form
1,368,073.49/1,888,128.89 = 787,284.65/x - Step 3: Cross multiply
1,368,073.49x = 1,888,128.89 × 787,284.65 - Step 4: Simplify right side
1,368,073.49x = 1,486,494,878,941.47 - Step 5: Solve for x
x = 1,486,494,878,941.47/1,368,073.49 - Step 6: Final answer
x = 1,086,560.70
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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.