Finding the Fourth Proportional to 561,875.09, 775,390.19 and 307,226.07
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Solution
The fourth proportional to 561,875.09, 775,390.19 and 307,226.07 is: 423,973.38
Step by Step Solution
- Step 1: Write the proportion equation
561,875.09 : 775,390.19 = 307,226.07 : x - Step 2: Convert to fraction form
561,875.09/775,390.19 = 307,226.07/x - Step 3: Cross multiply
561,875.09x = 775,390.19 × 307,226.07 - Step 4: Simplify right side
561,875.09x = 238,220,079,254.12 - Step 5: Solve for x
x = 238,220,079,254.12/561,875.09 - Step 6: Final answer
x = 423,973.38
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1.5x scale
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.