Finding the Fourth Proportional to 665,318.20, 918,545.99 and 432,966.53
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Solution
The fourth proportional to 665,318.20, 918,545.99 and 432,966.53 is: 597,758.59
Step by Step Solution
- Step 1: Write the proportion equation
665,318.20 : 918,545.99 = 432,966.53 : x - Step 2: Convert to fraction form
665,318.20/918,545.99 = 432,966.53/x - Step 3: Cross multiply
665,318.20x = 918,545.99 × 432,966.53 - Step 4: Simplify right side
665,318.20x = 397,699,669,935.72 - Step 5: Solve for x
x = 397,699,669,935.72/665,318.20 - Step 6: Final answer
x = 597,758.59
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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.