Finding the Fourth Proportional to 725,459.81, 1,000,823.99 and 453,054.78
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Solution
The fourth proportional to 725,459.81, 1,000,823.99 and 453,054.78 is: 625,021.66
Step by Step Solution
- Step 1: Write the proportion equation
725,459.81 : 1,000,823.99 = 453,054.78 : x - Step 2: Convert to fraction form
725,459.81/1,000,823.99 = 453,054.78/x - Step 3: Cross multiply
725,459.81x = 1,000,823.99 × 453,054.78 - Step 4: Simplify right side
725,459.81x = 453,428,090,342.90 - Step 5: Solve for x
x = 453,428,090,342.90/725,459.81 - Step 6: Final answer
x = 625,021.66
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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.