Finding the Fourth Proportional to 521,813.04, 782,689.58 and 309,926.84
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Solution
The fourth proportional to 521,813.04, 782,689.58 and 309,926.84 is: 464,872.45
Step by Step Solution
- Step 1: Write the proportion equation
521,813.04 : 782,689.58 = 309,926.84 : x - Step 2: Convert to fraction form
521,813.04/782,689.58 = 309,926.84/x - Step 3: Cross multiply
521,813.04x = 782,689.58 × 309,926.84 - Step 4: Simplify right side
521,813.04x = 242,576,508,332.10 - Step 5: Solve for x
x = 242,576,508,332.10/521,813.04 - Step 6: Final answer
x = 464,872.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.