Finding the Fourth Proportional to 1,028,721.68, 1,542,334.80 and 429,854.24
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Solution
The fourth proportional to 1,028,721.68, 1,542,334.80 and 429,854.24 is: 644,468.92
Step by Step Solution
- Step 1: Write the proportion equation
1,028,721.68 : 1,542,334.80 = 429,854.24 : x - Step 2: Convert to fraction form
1,028,721.68/1,542,334.80 = 429,854.24/x - Step 3: Cross multiply
1,028,721.68x = 1,542,334.80 × 429,854.24 - Step 4: Simplify right side
1,028,721.68x = 662,979,153,279.55 - Step 5: Solve for x
x = 662,979,153,279.55/1,028,721.68 - Step 6: Final answer
x = 644,468.92
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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.