Finding the Fourth Proportional to 692,020.08, 954,987.84 and 390,214.08
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Solution
The fourth proportional to 692,020.08, 954,987.84 and 390,214.08 is: 538,495.50
Step by Step Solution
- Step 1: Write the proportion equation
692,020.08 : 954,987.84 = 390,214.08 : x - Step 2: Convert to fraction form
692,020.08/954,987.84 = 390,214.08/x - Step 3: Cross multiply
692,020.08x = 954,987.84 × 390,214.08 - Step 4: Simplify right side
692,020.08x = 372,649,701,396.79 - Step 5: Solve for x
x = 372,649,701,396.79/692,020.08 - Step 6: Final answer
x = 538,495.50
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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.