Finding the Fourth Proportional to 745,385.24, 1,028,644.08 and 423,105.23
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Solution
The fourth proportional to 745,385.24, 1,028,644.08 and 423,105.23 is: 583,892.28
Step by Step Solution
- Step 1: Write the proportion equation
745,385.24 : 1,028,644.08 = 423,105.23 : x - Step 2: Convert to fraction form
745,385.24/1,028,644.08 = 423,105.23/x - Step 3: Cross multiply
745,385.24x = 1,028,644.08 × 423,105.23 - Step 4: Simplify right side
745,385.24x = 435,224,690,056.54 - Step 5: Solve for x
x = 435,224,690,056.54/745,385.24 - Step 6: Final answer
x = 583,892.28
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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.