Finding the Fourth Proportional to 538,907.70, 808,361.55 and 455,963.70
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Solution
The fourth proportional to 538,907.70, 808,361.55 and 455,963.70 is: 683,945.55
Step by Step Solution
- Step 1: Write the proportion equation
538,907.70 : 808,361.55 = 455,963.70 : x - Step 2: Convert to fraction form
538,907.70/808,361.55 = 455,963.70/x - Step 3: Cross multiply
538,907.70x = 808,361.55 × 455,963.70 - Step 4: Simplify right side
538,907.70x = 368,583,523,275.74 - Step 5: Solve for x
x = 368,583,523,275.74/538,907.70 - Step 6: Final answer
x = 683,945.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.