Finding the Fourth Proportional to 898,136.94, 1,239,243.95 and 516,089.91
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Solution
The fourth proportional to 898,136.94, 1,239,243.95 and 516,089.91 is: 712,097.75
Step by Step Solution
- Step 1: Write the proportion equation
898,136.94 : 1,239,243.95 = 516,089.91 : x - Step 2: Convert to fraction form
898,136.94/1,239,243.95 = 516,089.91/x - Step 3: Cross multiply
898,136.94x = 1,239,243.95 × 516,089.91 - Step 4: Simplify right side
898,136.94x = 639,561,298,623.54 - Step 5: Solve for x
x = 639,561,298,623.54/898,136.94 - Step 6: Final answer
x = 712,097.75
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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.