Finding the Fourth Proportional to 790,347.68, 1,090,706.24 and 484,364.96
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Solution
The fourth proportional to 790,347.68, 1,090,706.24 and 484,364.96 is: 668,439.85
Step by Step Solution
- Step 1: Write the proportion equation
790,347.68 : 1,090,706.24 = 484,364.96 : x - Step 2: Convert to fraction form
790,347.68/1,090,706.24 = 484,364.96/x - Step 3: Cross multiply
790,347.68x = 1,090,706.24 × 484,364.96 - Step 4: Simplify right side
790,347.68x = 528,299,884,309.35 - Step 5: Solve for x
x = 528,299,884,309.35/790,347.68 - Step 6: Final answer
x = 668,439.85
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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.