Finding the Fourth Proportional to 503,889.30, 695,340.99 and 312,898.59
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Solution
The fourth proportional to 503,889.30, 695,340.99 and 312,898.59 is: 431,783.76
Step by Step Solution
- Step 1: Write the proportion equation
503,889.30 : 695,340.99 = 312,898.59 : x - Step 2: Convert to fraction form
503,889.30/695,340.99 = 312,898.59/x - Step 3: Cross multiply
503,889.30x = 695,340.99 × 312,898.59 - Step 4: Simplify right side
503,889.30x = 217,571,215,340.20 - Step 5: Solve for x
x = 217,571,215,340.20/503,889.30 - Step 6: Final answer
x = 431,783.76
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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.