Finding the Fourth Proportional to 559,822.51, 772,555.08 and 305,173.90
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Solution
The fourth proportional to 559,822.51, 772,555.08 and 305,173.90 is: 421,139.99
Step by Step Solution
- Step 1: Write the proportion equation
559,822.51 : 772,555.08 = 305,173.90 : x - Step 2: Convert to fraction form
559,822.51/772,555.08 = 305,173.90/x - Step 3: Cross multiply
559,822.51x = 772,555.08 × 305,173.90 - Step 4: Simplify right side
559,822.51x = 235,763,646,728.41 - Step 5: Solve for x
x = 235,763,646,728.41/559,822.51 - Step 6: Final answer
x = 421,139.99
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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.