Finding the Fourth Proportional to 960,074.18, 1,440,106.07 and 391,453.07
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Solution
The fourth proportional to 960,074.18, 1,440,106.07 and 391,453.07 is: 587,177.49
Step by Step Solution
- Step 1: Write the proportion equation
960,074.18 : 1,440,106.07 = 391,453.07 : x - Step 2: Convert to fraction form
960,074.18/1,440,106.07 = 391,453.07/x - Step 3: Cross multiply
960,074.18x = 1,440,106.07 × 391,453.07 - Step 4: Simplify right side
960,074.18x = 563,733,943,870.14 - Step 5: Solve for x
x = 563,733,943,870.14/960,074.18 - Step 6: Final answer
x = 587,177.49
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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.