Finding the Fourth Proportional to 660,029.70, 989,850.15 and 260,537.70
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Solution
The fourth proportional to 660,029.70, 989,850.15 and 260,537.70 is: 390,729.81
Step by Step Solution
- Step 1: Write the proportion equation
660,029.70 : 989,850.15 = 260,537.70 : x - Step 2: Convert to fraction form
660,029.70/989,850.15 = 260,537.70/x - Step 3: Cross multiply
660,029.70x = 989,850.15 × 260,537.70 - Step 4: Simplify right side
660,029.70x = 257,893,281,425.66 - Step 5: Solve for x
x = 257,893,281,425.66/660,029.70 - Step 6: Final answer
x = 390,729.81
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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.