Finding the Fourth Proportional to 859,979.55, 1,186,785.99 and 472,811.34
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Solution
The fourth proportional to 859,979.55, 1,186,785.99 and 472,811.34 is: 652,487.46
Step by Step Solution
- Step 1: Write the proportion equation
859,979.55 : 1,186,785.99 = 472,811.34 : x - Step 2: Convert to fraction form
859,979.55/1,186,785.99 = 472,811.34/x - Step 3: Cross multiply
859,979.55x = 1,186,785.99 × 472,811.34 - Step 4: Simplify right side
859,979.55x = 561,125,874,225.13 - Step 5: Solve for x
x = 561,125,874,225.13/859,979.55 - Step 6: Final answer
x = 652,487.46
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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.