Finding the Fourth Proportional to 516,709.20, 712,972.50 and 287,260.08
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Solution
The fourth proportional to 516,709.20, 712,972.50 and 287,260.08 is: 396,370.99
Step by Step Solution
- Step 1: Write the proportion equation
516,709.20 : 712,972.50 = 287,260.08 : x - Step 2: Convert to fraction form
516,709.20/712,972.50 = 287,260.08/x - Step 3: Cross multiply
516,709.20x = 712,972.50 × 287,260.08 - Step 4: Simplify right side
516,709.20x = 204,808,537,387.80 - Step 5: Solve for x
x = 204,808,537,387.80/516,709.20 - Step 6: Final answer
x = 396,370.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.