Finding the Fourth Proportional to 518,019.68, 714,900.18 and 314,090.12
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Solution
The fourth proportional to 518,019.68, 714,900.18 and 314,090.12 is: 433,464.39
Step by Step Solution
- Step 1: Write the proportion equation
518,019.68 : 714,900.18 = 314,090.12 : x - Step 2: Convert to fraction form
518,019.68/714,900.18 = 314,090.12/x - Step 3: Cross multiply
518,019.68x = 714,900.18 × 314,090.12 - Step 4: Simplify right side
518,019.68x = 224,543,083,324.22 - Step 5: Solve for x
x = 224,543,083,324.22/518,019.68 - Step 6: Final answer
x = 433,464.39
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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.