Finding the Fourth Proportional to 885,739.01, 1,328,819.36 and 286,700.12
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Solution
The fourth proportional to 885,739.01, 1,328,819.36 and 286,700.12 is: 430,118.43
Step by Step Solution
- Step 1: Write the proportion equation
885,739.01 : 1,328,819.36 = 286,700.12 : x - Step 2: Convert to fraction form
885,739.01/1,328,819.36 = 286,700.12/x - Step 3: Cross multiply
885,739.01x = 1,328,819.36 × 286,700.12 - Step 4: Simplify right side
885,739.01x = 380,972,666,875.80 - Step 5: Solve for x
x = 380,972,666,875.80/885,739.01 - Step 6: Final answer
x = 430,118.43
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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.