Finding the Fourth Proportional to 819,113.24, 1,130,381.51 and 456,560.12
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Solution
The fourth proportional to 819,113.24, 1,130,381.51 and 456,560.12 is: 630,055.88
Step by Step Solution
- Step 1: Write the proportion equation
819,113.24 : 1,130,381.51 = 456,560.12 : x - Step 2: Convert to fraction form
819,113.24/1,130,381.51 = 456,560.12/x - Step 3: Cross multiply
819,113.24x = 1,130,381.51 × 456,560.12 - Step 4: Simplify right side
819,113.24x = 516,087,109,916.67 - Step 5: Solve for x
x = 516,087,109,916.67/819,113.24 - Step 6: Final answer
x = 630,055.88
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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.