Finding the Fourth Proportional to 877,553.40, 1,232,117.70 and 877,553.40
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Solution
The fourth proportional to 877,553.40, 1,232,117.70 and 877,553.40 is: 1,232,117.70
Step by Step Solution
- Step 1: Write the proportion equation
877,553.40 : 1,232,117.70 = 877,553.40 : x - Step 2: Convert to fraction form
877,553.40/1,232,117.70 = 877,553.40/x - Step 3: Cross multiply
877,553.40x = 1,232,117.70 × 877,553.40 - Step 4: Simplify right side
877,553.40x = 1,081,249,076,835.18 - Step 5: Solve for x
x = 1,081,249,076,835.18/877,553.40 - Step 6: Final answer
x = 1,232,117.70
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Double scale
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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.