Finding the Fourth Proportional to 805,017.67, 1,207,679.59 and 272,395.69
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Solution
The fourth proportional to 805,017.67, 1,207,679.59 and 272,395.69 is: 408,645.33
Step by Step Solution
- Step 1: Write the proportion equation
805,017.67 : 1,207,679.59 = 272,395.69 : x - Step 2: Convert to fraction form
805,017.67/1,207,679.59 = 272,395.69/x - Step 3: Cross multiply
805,017.67x = 1,207,679.59 × 272,395.69 - Step 4: Simplify right side
805,017.67x = 328,966,712,538.26 - Step 5: Solve for x
x = 328,966,712,538.26/805,017.67 - Step 6: Final answer
x = 408,645.33
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1.5x scale
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.