Finding the Fourth Proportional to 768,345.23, 1,060,455.21 and 458,267.70
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Solution
The fourth proportional to 768,345.23, 1,060,455.21 and 458,267.70 is: 632,492.20
Step by Step Solution
- Step 1: Write the proportion equation
768,345.23 : 1,060,455.21 = 458,267.70 : x - Step 2: Convert to fraction form
768,345.23/1,060,455.21 = 458,267.70/x - Step 3: Cross multiply
768,345.23x = 1,060,455.21 × 458,267.70 - Step 4: Simplify right side
768,345.23x = 485,972,362,446.10 - Step 5: Solve for x
x = 485,972,362,446.10/768,345.23 - Step 6: Final answer
x = 632,492.20
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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.