Finding the Fourth Proportional to 772,478.72, 1,158,719.04 and 211,518.08
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Solution
The fourth proportional to 772,478.72, 1,158,719.04 and 211,518.08 is: 317,277.38
Step by Step Solution
- Step 1: Write the proportion equation
772,478.72 : 1,158,719.04 = 211,518.08 : x - Step 2: Convert to fraction form
772,478.72/1,158,719.04 = 211,518.08/x - Step 3: Cross multiply
772,478.72x = 1,158,719.04 × 211,518.08 - Step 4: Simplify right side
772,478.72x = 245,090,026,600.24 - Step 5: Solve for x
x = 245,090,026,600.24/772,478.72 - Step 6: Final answer
x = 317,277.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.