Finding the Fourth Proportional to 642,646.98, 963,776.37 and 193,248.55
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Solution
The fourth proportional to 642,646.98, 963,776.37 and 193,248.55 is: 289,814.46
Step by Step Solution
- Step 1: Write the proportion equation
642,646.98 : 963,776.37 = 193,248.55 : x - Step 2: Convert to fraction form
642,646.98/963,776.37 = 193,248.55/x - Step 3: Cross multiply
642,646.98x = 963,776.37 × 193,248.55 - Step 4: Simplify right side
642,646.98x = 186,248,386,869.14 - Step 5: Solve for x
x = 186,248,386,869.14/642,646.98 - Step 6: Final answer
x = 289,814.46
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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.