Finding the Fourth Proportional to 679,872.98, 938,226.58 and 373,980.70
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Solution
The fourth proportional to 679,872.98, 938,226.58 and 373,980.70 is: 516,094.39
Step by Step Solution
- Step 1: Write the proportion equation
679,872.98 : 938,226.58 = 373,980.70 : x - Step 2: Convert to fraction form
679,872.98/938,226.58 = 373,980.70/x - Step 3: Cross multiply
679,872.98x = 938,226.58 × 373,980.70 - Step 4: Simplify right side
679,872.98x = 350,878,628,107.31 - Step 5: Solve for x
x = 350,878,628,107.31/679,872.98 - Step 6: Final answer
x = 516,094.39
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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.