Finding the Fourth Proportional to 761,284.98, 1,050,496.90 and 455,299.99
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Solution
The fourth proportional to 761,284.98, 1,050,496.90 and 455,299.99 is: 628,268.31
Step by Step Solution
- Step 1: Write the proportion equation
761,284.98 : 1,050,496.90 = 455,299.99 : x - Step 2: Convert to fraction form
761,284.98/1,050,496.90 = 455,299.99/x - Step 3: Cross multiply
761,284.98x = 1,050,496.90 × 455,299.99 - Step 4: Simplify right side
761,284.98x = 478,291,224,300.54 - Step 5: Solve for x
x = 478,291,224,300.54/761,284.98 - Step 6: Final answer
x = 628,268.31
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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.