Finding the Fourth Proportional to 405,237.84, 607,313.38 and 315,389.02
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Solution
The fourth proportional to 405,237.84, 607,313.38 and 315,389.02 is: 472,660.63
Step by Step Solution
- Step 1: Write the proportion equation
405,237.84 : 607,313.38 = 315,389.02 : x - Step 2: Convert to fraction form
405,237.84/607,313.38 = 315,389.02/x - Step 3: Cross multiply
405,237.84x = 607,313.38 × 315,389.02 - Step 4: Simplify right side
405,237.84x = 191,539,971,751.09 - Step 5: Solve for x
x = 191,539,971,751.09/405,237.84 - Step 6: Final answer
x = 472,660.63
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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.