Finding the Fourth Proportional to 1,078,216.48, 1,617,302.64 and 479,015.20
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Solution
The fourth proportional to 1,078,216.48, 1,617,302.64 and 479,015.20 is: 718,512.99
Step by Step Solution
- Step 1: Write the proportion equation
1,078,216.48 : 1,617,302.64 = 479,015.20 : x - Step 2: Convert to fraction form
1,078,216.48/1,617,302.64 = 479,015.20/x - Step 3: Cross multiply
1,078,216.48x = 1,617,302.64 × 479,015.20 - Step 4: Simplify right side
1,078,216.48x = 774,712,547,560.13 - Step 5: Solve for x
x = 774,712,547,560.13/1,078,216.48 - Step 6: Final answer
x = 718,512.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.