Finding the Fourth Proportional to 660,472.12, 911,456.58 and 358,666.12
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Solution
The fourth proportional to 660,472.12, 911,456.58 and 358,666.12 is: 494,961.99
Step by Step Solution
- Step 1: Write the proportion equation
660,472.12 : 911,456.58 = 358,666.12 : x - Step 2: Convert to fraction form
660,472.12/911,456.58 = 358,666.12/x - Step 3: Cross multiply
660,472.12x = 911,456.58 × 358,666.12 - Step 4: Simplify right side
660,472.12x = 326,908,595,097.07 - Step 5: Solve for x
x = 326,908,595,097.07/660,472.12 - Step 6: Final answer
x = 494,961.99
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1.5x scale
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.