Finding the Fourth Proportional to 1,420,397.86, 2,130,604.83 and 473,765.98
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Solution
The fourth proportional to 1,420,397.86, 2,130,604.83 and 473,765.98 is: 710,651.65
Step by Step Solution
- Step 1: Write the proportion equation
1,420,397.86 : 2,130,604.83 = 473,765.98 : x - Step 2: Convert to fraction form
1,420,397.86/2,130,604.83 = 473,765.98/x - Step 3: Cross multiply
1,420,397.86x = 2,130,604.83 × 473,765.98 - Step 4: Simplify right side
1,420,397.86x = 1,009,408,085,277.68 - Step 5: Solve for x
x = 1,009,408,085,277.68/1,420,397.86 - Step 6: Final answer
x = 710,651.65
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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.