Finding the Fourth Proportional to 542,887.80, 814,331.70 and 402,919.80
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Solution
The fourth proportional to 542,887.80, 814,331.70 and 402,919.80 is: 604,379.70
Step by Step Solution
- Step 1: Write the proportion equation
542,887.80 : 814,331.70 = 402,919.80 : x - Step 2: Convert to fraction form
542,887.80/814,331.70 = 402,919.80/x - Step 3: Cross multiply
542,887.80x = 814,331.70 × 402,919.80 - Step 4: Simplify right side
542,887.80x = 328,110,365,697.66 - Step 5: Solve for x
x = 328,110,365,697.66/542,887.80 - Step 6: Final answer
x = 604,379.70
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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.