Finding the Fourth Proportional to 1,428,013.09, 2,142,219.66 and 417,209.03
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Solution
The fourth proportional to 1,428,013.09, 2,142,219.66 and 417,209.03 is: 625,871.98
Step by Step Solution
- Step 1: Write the proportion equation
1,428,013.09 : 2,142,219.66 = 417,209.03 : x - Step 2: Convert to fraction form
1,428,013.09/2,142,219.66 = 417,209.03/x - Step 3: Cross multiply
1,428,013.09x = 2,142,219.66 × 417,209.03 - Step 4: Simplify right side
1,428,013.09x = 893,753,382,153.22 - Step 5: Solve for x
x = 893,753,382,153.22/1,428,013.09 - Step 6: Final answer
x = 625,871.98
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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.