Finding the Fourth Proportional to 740,423.70, 1,038,692.70 and 740,423.70
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Solution
The fourth proportional to 740,423.70, 1,038,692.70 and 740,423.70 is: 1,038,692.70
Step by Step Solution
- Step 1: Write the proportion equation
740,423.70 : 1,038,692.70 = 740,423.70 : x - Step 2: Convert to fraction form
740,423.70/1,038,692.70 = 740,423.70/x - Step 3: Cross multiply
740,423.70x = 1,038,692.70 × 740,423.70 - Step 4: Simplify right side
740,423.70x = 769,072,692,096.99 - Step 5: Solve for x
x = 769,072,692,096.99/740,423.70 - Step 6: Final answer
x = 1,038,692.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.