Finding the Fourth Proportional to 679,337.91, 1,018,824.62 and 323,644.23
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Solution
The fourth proportional to 679,337.91, 1,018,824.62 and 323,644.23 is: 485,379.52
Step by Step Solution
- Step 1: Write the proportion equation
679,337.91 : 1,018,824.62 = 323,644.23 : x - Step 2: Convert to fraction form
679,337.91/1,018,824.62 = 323,644.23/x - Step 3: Cross multiply
679,337.91x = 1,018,824.62 × 323,644.23 - Step 4: Simplify right side
679,337.91x = 329,736,708,026.72 - Step 5: Solve for x
x = 329,736,708,026.72/679,337.91 - Step 6: Final answer
x = 485,379.52
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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.