Finding the Fourth Proportional to 724,017.08, 999,289.10 and 418,143.26
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Solution
The fourth proportional to 724,017.08, 999,289.10 and 418,143.26 is: 577,121.75
Step by Step Solution
- Step 1: Write the proportion equation
724,017.08 : 999,289.10 = 418,143.26 : x - Step 2: Convert to fraction form
724,017.08/999,289.10 = 418,143.26/x - Step 3: Cross multiply
724,017.08x = 999,289.10 × 418,143.26 - Step 4: Simplify right side
724,017.08x = 417,846,005,500.05 - Step 5: Solve for x
x = 417,846,005,500.05/724,017.08 - Step 6: Final answer
x = 577,121.75
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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.