Finding the Fourth Proportional to 808,053.01, 1,115,120.34 and 445,489.63
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Solution
The fourth proportional to 808,053.01, 1,115,120.34 and 445,489.63 is: 614,779.65
Step by Step Solution
- Step 1: Write the proportion equation
808,053.01 : 1,115,120.34 = 445,489.63 : x - Step 2: Convert to fraction form
808,053.01/1,115,120.34 = 445,489.63/x - Step 3: Cross multiply
808,053.01x = 1,115,120.34 × 445,489.63 - Step 4: Simplify right side
808,053.01x = 496,774,547,672.07 - Step 5: Solve for x
x = 496,774,547,672.07/808,053.01 - Step 6: Final answer
x = 614,779.65
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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.