Finding the Fourth Proportional to 438,747.34, 657,637.98 and 286,881.79
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Solution
The fourth proportional to 438,747.34, 657,637.98 and 286,881.79 is: 430,006.84
Step by Step Solution
- Step 1: Write the proportion equation
438,747.34 : 657,637.98 = 286,881.79 : x - Step 2: Convert to fraction form
438,747.34/657,637.98 = 286,881.79/x - Step 3: Cross multiply
438,747.34x = 657,637.98 × 286,881.79 - Step 4: Simplify right side
438,747.34x = 188,664,356,151.79 - Step 5: Solve for x
x = 188,664,356,151.79/438,747.34 - Step 6: Final answer
x = 430,006.84
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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.