Finding the Fourth Proportional to 480,479.79, 720,719.58 and 440,386.06
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Solution
The fourth proportional to 480,479.79, 720,719.58 and 440,386.06 is: 660,578.99
Step by Step Solution
- Step 1: Write the proportion equation
480,479.79 : 720,719.58 = 440,386.06 : x - Step 2: Convert to fraction form
480,479.79/720,719.58 = 440,386.06/x - Step 3: Cross multiply
480,479.79x = 720,719.58 × 440,386.06 - Step 4: Simplify right side
480,479.79x = 317,394,854,399.26 - Step 5: Solve for x
x = 317,394,854,399.26/480,479.79 - Step 6: Final answer
x = 660,578.99
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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.