Finding the Fourth Proportional to 513,574.79, 769,731.21 and 288,462.02
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Solution
The fourth proportional to 513,574.79, 769,731.21 and 288,462.02 is: 432,338.62
Step by Step Solution
- Step 1: Write the proportion equation
513,574.79 : 769,731.21 = 288,462.02 : x - Step 2: Convert to fraction form
513,574.79/769,731.21 = 288,462.02/x - Step 3: Cross multiply
513,574.79x = 769,731.21 × 288,462.02 - Step 4: Simplify right side
513,574.79x = 222,038,215,844.99 - Step 5: Solve for x
x = 222,038,215,844.99/513,574.79 - Step 6: Final answer
x = 432,338.62
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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.