Finding the Fourth Proportional to 519,248.70, 778,873.05 and 219,629.70
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Solution
The fourth proportional to 519,248.70, 778,873.05 and 219,629.70 is: 329,444.55
Step by Step Solution
- Step 1: Write the proportion equation
519,248.70 : 778,873.05 = 219,629.70 : x - Step 2: Convert to fraction form
519,248.70/778,873.05 = 219,629.70/x - Step 3: Cross multiply
519,248.70x = 778,873.05 × 219,629.70 - Step 4: Simplify right side
519,248.70x = 171,063,654,309.59 - Step 5: Solve for x
x = 171,063,654,309.59/519,248.70 - Step 6: Final answer
x = 329,444.55
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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.