Finding the Fourth Proportional to 915,327.81, 1,372,673.16 and 375,430.74
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Solution
The fourth proportional to 915,327.81, 1,372,673.16 and 375,430.74 is: 563,015.45
Step by Step Solution
- Step 1: Write the proportion equation
915,327.81 : 1,372,673.16 = 375,430.74 : x - Step 2: Convert to fraction form
915,327.81/1,372,673.16 = 375,430.74/x - Step 3: Cross multiply
915,327.81x = 1,372,673.16 × 375,430.74 - Step 4: Simplify right side
915,327.81x = 515,343,700,236.94 - Step 5: Solve for x
x = 515,343,700,236.94/915,327.81 - Step 6: Final answer
x = 563,015.45
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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.