Finding the Fourth Proportional to 995,116.80, 1,373,261.55 and 565,397.49
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Solution
The fourth proportional to 995,116.80, 1,373,261.55 and 565,397.49 is: 780,248.74
Step by Step Solution
- Step 1: Write the proportion equation
995,116.80 : 1,373,261.55 = 565,397.49 : x - Step 2: Convert to fraction form
995,116.80/1,373,261.55 = 565,397.49/x - Step 3: Cross multiply
995,116.80x = 1,373,261.55 × 565,397.49 - Step 4: Simplify right side
995,116.80x = 776,438,633,483.51 - Step 5: Solve for x
x = 776,438,633,483.51/995,116.80 - Step 6: Final answer
x = 780,248.74
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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.