Finding the Fourth Proportional to 788,238.08, 1,087,772.80 and 430,542.08
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Solution
The fourth proportional to 788,238.08, 1,087,772.80 and 430,542.08 is: 594,150.39
Step by Step Solution
- Step 1: Write the proportion equation
788,238.08 : 1,087,772.80 = 430,542.08 : x - Step 2: Convert to fraction form
788,238.08/1,087,772.80 = 430,542.08/x - Step 3: Cross multiply
788,238.08x = 1,087,772.80 × 430,542.08 - Step 4: Simplify right side
788,238.08x = 468,331,963,879.42 - Step 5: Solve for x
x = 468,331,963,879.42/788,238.08 - Step 6: Final answer
x = 594,150.39
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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.