Finding the Fourth Proportional to 563,138.16, 776,936.40 and 321,246.24
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Solution
The fourth proportional to 563,138.16, 776,936.40 and 321,246.24 is: 443,208.99
Step by Step Solution
- Step 1: Write the proportion equation
563,138.16 : 776,936.40 = 321,246.24 : x - Step 2: Convert to fraction form
563,138.16/776,936.40 = 321,246.24/x - Step 3: Cross multiply
563,138.16x = 776,936.40 × 321,246.24 - Step 4: Simplify right side
563,138.16x = 249,587,897,219.14 - Step 5: Solve for x
x = 249,587,897,219.14/563,138.16 - Step 6: Final answer
x = 443,208.99
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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.