Finding the Fourth Proportional to 1,068,130.56, 1,473,919.36 and 638,325.12
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Solution
The fourth proportional to 1,068,130.56, 1,473,919.36 and 638,325.12 is: 880,828.42
Step by Step Solution
- Step 1: Write the proportion equation
1,068,130.56 : 1,473,919.36 = 638,325.12 : x - Step 2: Convert to fraction form
1,068,130.56/1,473,919.36 = 638,325.12/x - Step 3: Cross multiply
1,068,130.56x = 1,473,919.36 × 638,325.12 - Step 4: Simplify right side
1,068,130.56x = 940,839,752,342.32 - Step 5: Solve for x
x = 940,839,752,342.32/1,068,130.56 - Step 6: Final answer
x = 880,828.42
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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.