Finding the Fourth Proportional to 738,259.70, 1,107,389.55 and 239,623.70
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Solution
The fourth proportional to 738,259.70, 1,107,389.55 and 239,623.70 is: 359,435.55
Step by Step Solution
- Step 1: Write the proportion equation
738,259.70 : 1,107,389.55 = 239,623.70 : x - Step 2: Convert to fraction form
738,259.70/1,107,389.55 = 239,623.70/x - Step 3: Cross multiply
738,259.70x = 1,107,389.55 × 239,623.70 - Step 4: Simplify right side
738,259.70x = 265,356,781,312.34 - Step 5: Solve for x
x = 265,356,781,312.34/738,259.70 - Step 6: Final answer
x = 359,435.55
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Similar ratio
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1.5x scale
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.