Finding the Fourth Proportional to 745,212.36, 1,028,390.12 and 418,480.02
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Solution
The fourth proportional to 745,212.36, 1,028,390.12 and 418,480.02 is: 577,500.78
Step by Step Solution
- Step 1: Write the proportion equation
745,212.36 : 1,028,390.12 = 418,480.02 : x - Step 2: Convert to fraction form
745,212.36/1,028,390.12 = 418,480.02/x - Step 3: Cross multiply
745,212.36x = 1,028,390.12 × 418,480.02 - Step 4: Simplify right side
745,212.36x = 430,360,717,985.40 - Step 5: Solve for x
x = 430,360,717,985.40/745,212.36 - Step 6: Final answer
x = 577,500.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.