Finding the Fourth Proportional to 1,186,223.17, 1,778,966.75 and 427,966.07
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Solution
The fourth proportional to 1,186,223.17, 1,778,966.75 and 427,966.07 is: 641,816.33
Step by Step Solution
- Step 1: Write the proportion equation
1,186,223.17 : 1,778,966.75 = 427,966.07 : x - Step 2: Convert to fraction form
1,186,223.17/1,778,966.75 = 427,966.07/x - Step 3: Cross multiply
1,186,223.17x = 1,778,966.75 × 427,966.07 - Step 4: Simplify right side
1,186,223.17x = 761,337,399,763.34 - Step 5: Solve for x
x = 761,337,399,763.34/1,186,223.17 - Step 6: Final answer
x = 641,816.33
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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.