Finding the Fourth Proportional to 761,250.21, 1,050,637.14 and 438,897.21
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Solution
The fourth proportional to 761,250.21, 1,050,637.14 and 438,897.21 is: 605,742.64
Step by Step Solution
- Step 1: Write the proportion equation
761,250.21 : 1,050,637.14 = 438,897.21 : x - Step 2: Convert to fraction form
761,250.21/1,050,637.14 = 438,897.21/x - Step 3: Cross multiply
761,250.21x = 1,050,637.14 × 438,897.21 - Step 4: Simplify right side
761,250.21x = 461,121,709,468.38 - Step 5: Solve for x
x = 461,121,709,468.38/761,250.21 - Step 6: Final answer
x = 605,742.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.