Finding the Fourth Proportional to 753,036.84, 1,039,203.54 and 413,536.68
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Solution
The fourth proportional to 753,036.84, 1,039,203.54 and 413,536.68 is: 570,687.59
Step by Step Solution
- Step 1: Write the proportion equation
753,036.84 : 1,039,203.54 = 413,536.68 : x - Step 2: Convert to fraction form
753,036.84/1,039,203.54 = 413,536.68/x - Step 3: Cross multiply
753,036.84x = 1,039,203.54 × 413,536.68 - Step 4: Simplify right side
753,036.84x = 429,748,781,775.85 - Step 5: Solve for x
x = 429,748,781,775.85/753,036.84 - Step 6: Final answer
x = 570,687.59
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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.