Finding the Fourth Proportional to 717,827.19, 990,428.20 and 472,785.99
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Solution
The fourth proportional to 717,827.19, 990,428.20 and 472,785.99 is: 652,330.51
Step by Step Solution
- Step 1: Write the proportion equation
717,827.19 : 990,428.20 = 472,785.99 : x - Step 2: Convert to fraction form
717,827.19/990,428.20 = 472,785.99/x - Step 3: Cross multiply
717,827.19x = 990,428.20 × 472,785.99 - Step 4: Simplify right side
717,827.19x = 468,260,577,060.92 - Step 5: Solve for x
x = 468,260,577,060.92/717,827.19 - Step 6: Final answer
x = 652,330.51
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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.