Finding the Fourth Proportional to 938,305.80, 1,407,458.70 and 465,913.80
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Solution
The fourth proportional to 938,305.80, 1,407,458.70 and 465,913.80 is: 698,870.70
Step by Step Solution
- Step 1: Write the proportion equation
938,305.80 : 1,407,458.70 = 465,913.80 : x - Step 2: Convert to fraction form
938,305.80/1,407,458.70 = 465,913.80/x - Step 3: Cross multiply
938,305.80x = 1,407,458.70 × 465,913.80 - Step 4: Simplify right side
938,305.80x = 655,754,431,260.06 - Step 5: Solve for x
x = 655,754,431,260.06/938,305.80 - Step 6: Final answer
x = 698,870.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.