Finding the Fourth Proportional to 644,669.67, 967,197.69 and 260,220.60
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Solution
The fourth proportional to 644,669.67, 967,197.69 and 260,220.60 is: 390,408.88
Step by Step Solution
- Step 1: Write the proportion equation
644,669.67 : 967,197.69 = 260,220.60 : x - Step 2: Convert to fraction form
644,669.67/967,197.69 = 260,220.60/x - Step 3: Cross multiply
644,669.67x = 967,197.69 × 260,220.60 - Step 4: Simplify right side
644,669.67x = 251,684,763,210.41 - Step 5: Solve for x
x = 251,684,763,210.41/644,669.67 - Step 6: Final answer
x = 390,408.88
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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.