Finding the Fourth Proportional to 901,396.84, 1,243,925.56 and 538,803.12
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Solution
The fourth proportional to 901,396.84, 1,243,925.56 and 538,803.12 is: 743,547.06
Step by Step Solution
- Step 1: Write the proportion equation
901,396.84 : 1,243,925.56 = 538,803.12 : x - Step 2: Convert to fraction form
901,396.84/1,243,925.56 = 538,803.12/x - Step 3: Cross multiply
901,396.84x = 1,243,925.56 × 538,803.12 - Step 4: Simplify right side
901,396.84x = 670,230,972,775.75 - Step 5: Solve for x
x = 670,230,972,775.75/901,396.84 - Step 6: Final answer
x = 743,547.06
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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.