Finding the Fourth Proportional to 847,289.44, 1,270,895.28 and 286,328.80
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Solution
The fourth proportional to 847,289.44, 1,270,895.28 and 286,328.80 is: 429,480.06
Step by Step Solution
- Step 1: Write the proportion equation
847,289.44 : 1,270,895.28 = 286,328.80 : x - Step 2: Convert to fraction form
847,289.44/1,270,895.28 = 286,328.80/x - Step 3: Cross multiply
847,289.44x = 1,270,895.28 × 286,328.80 - Step 4: Simplify right side
847,289.44x = 363,893,920,448.06 - Step 5: Solve for x
x = 363,893,920,448.06/847,289.44 - Step 6: Final answer
x = 429,480.06
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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.