Finding the Fourth Proportional to 518,897.18, 778,010.34 and 203,385.98
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Solution
The fourth proportional to 518,897.18, 778,010.34 and 203,385.98 is: 304,947.50
Step by Step Solution
- Step 1: Write the proportion equation
518,897.18 : 778,010.34 = 203,385.98 : x - Step 2: Convert to fraction form
518,897.18/778,010.34 = 203,385.98/x - Step 3: Cross multiply
518,897.18x = 778,010.34 × 203,385.98 - Step 4: Simplify right side
518,897.18x = 158,236,395,451.03 - Step 5: Solve for x
x = 158,236,395,451.03/518,897.18 - Step 6: Final answer
x = 304,947.50
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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.