Finding the Fourth Proportional to 506,512.14, 699,124.95 and 315,412.62
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Solution
The fourth proportional to 506,512.14, 699,124.95 and 315,412.62 is: 435,355.47
Step by Step Solution
- Step 1: Write the proportion equation
506,512.14 : 699,124.95 = 315,412.62 : x - Step 2: Convert to fraction form
506,512.14/699,124.95 = 315,412.62/x - Step 3: Cross multiply
506,512.14x = 699,124.95 × 315,412.62 - Step 4: Simplify right side
506,512.14x = 220,512,832,186.87 - Step 5: Solve for x
x = 220,512,832,186.87/506,512.14 - Step 6: Final answer
x = 435,355.47
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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.