Finding the Fourth Proportional to 753,139.62, 1,039,353.93 and 413,629.74
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Solution
The fourth proportional to 753,139.62, 1,039,353.93 and 413,629.74 is: 570,820.71
Step by Step Solution
- Step 1: Write the proportion equation
753,139.62 : 1,039,353.93 = 413,629.74 : x - Step 2: Convert to fraction form
753,139.62/1,039,353.93 = 413,629.74/x - Step 3: Cross multiply
753,139.62x = 1,039,353.93 × 413,629.74 - Step 4: Simplify right side
753,139.62x = 429,907,695,833.88 - Step 5: Solve for x
x = 429,907,695,833.88/753,139.62 - Step 6: Final answer
x = 570,820.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.