Finding the Fourth Proportional to 636,726.80, 878,678.06 and 350,240.60
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Solution
The fourth proportional to 636,726.80, 878,678.06 and 350,240.60 is: 483,329.32
Step by Step Solution
- Step 1: Write the proportion equation
636,726.80 : 878,678.06 = 350,240.60 : x - Step 2: Convert to fraction form
636,726.80/878,678.06 = 350,240.60/x - Step 3: Cross multiply
636,726.80x = 878,678.06 × 350,240.60 - Step 4: Simplify right side
636,726.80x = 307,748,730,941.24 - Step 5: Solve for x
x = 307,748,730,941.24/636,726.80 - Step 6: Final answer
x = 483,329.32
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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.