Finding the Fourth Proportional to 570,203.82, 786,905.96 and 315,555.08
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Solution
The fourth proportional to 570,203.82, 786,905.96 and 315,555.08 is: 435,479.66
Step by Step Solution
- Step 1: Write the proportion equation
570,203.82 : 786,905.96 = 315,555.08 : x - Step 2: Convert to fraction form
570,203.82/786,905.96 = 315,555.08/x - Step 3: Cross multiply
570,203.82x = 786,905.96 × 315,555.08 - Step 4: Simplify right side
570,203.82x = 248,312,167,647.97 - Step 5: Solve for x
x = 248,312,167,647.97/570,203.82 - Step 6: Final answer
x = 435,479.66
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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.