Finding the Fourth Proportional to 539,644.38, 744,772.23 and 448,840.14
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Solution
The fourth proportional to 539,644.38, 744,772.23 and 448,840.14 is: 619,451.78
Step by Step Solution
- Step 1: Write the proportion equation
539,644.38 : 744,772.23 = 448,840.14 : x - Step 2: Convert to fraction form
539,644.38/744,772.23 = 448,840.14/x - Step 3: Cross multiply
539,644.38x = 744,772.23 × 448,840.14 - Step 4: Simplify right side
539,644.38x = 334,283,671,981.31 - Step 5: Solve for x
x = 334,283,671,981.31/539,644.38 - Step 6: Final answer
x = 619,451.78
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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.