Finding the Fourth Proportional to 931,802.08, 1,285,869.94 and 518,336.84
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Solution
The fourth proportional to 931,802.08, 1,285,869.94 and 518,336.84 is: 715,295.42
Step by Step Solution
- Step 1: Write the proportion equation
931,802.08 : 1,285,869.94 = 518,336.84 : x - Step 2: Convert to fraction form
931,802.08/1,285,869.94 = 518,336.84/x - Step 3: Cross multiply
931,802.08x = 1,285,869.94 × 518,336.84 - Step 4: Simplify right side
931,802.08x = 666,513,761,350.59 - Step 5: Solve for x
x = 666,513,761,350.59/931,802.08 - Step 6: Final answer
x = 715,295.42
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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.