Finding the Fourth Proportional to 1,447,998.53, 1,998,246.71 and 803,431.31
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Solution
The fourth proportional to 1,447,998.53, 1,998,246.71 and 803,431.31 is: 1,108,740.05
Step by Step Solution
- Step 1: Write the proportion equation
1,447,998.53 : 1,998,246.71 = 803,431.31 : x - Step 2: Convert to fraction form
1,447,998.53/1,998,246.71 = 803,431.31/x - Step 3: Cross multiply
1,447,998.53x = 1,998,246.71 × 803,431.31 - Step 4: Simplify right side
1,447,998.53x = 1,605,453,963,935.84 - Step 5: Solve for x
x = 1,605,453,963,935.84/1,447,998.53 - Step 6: Final answer
x = 1,108,740.05
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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.