Finding the Fourth Proportional to 679,966.53, 938,316.87 and 373,993.53
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Solution
The fourth proportional to 679,966.53, 938,316.87 and 373,993.53 is: 516,090.75
Step by Step Solution
- Step 1: Write the proportion equation
679,966.53 : 938,316.87 = 373,993.53 : x - Step 2: Convert to fraction form
679,966.53/938,316.87 = 373,993.53/x - Step 3: Cross multiply
679,966.53x = 938,316.87 × 373,993.53 - Step 4: Simplify right side
679,966.53x = 350,924,437,529.73 - Step 5: Solve for x
x = 350,924,437,529.73/679,966.53 - Step 6: Final answer
x = 516,090.75
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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.