Finding the Fourth Proportional to 2,854,888.12, 3,939,994.76 and 1,565,977.62
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Solution
The fourth proportional to 2,854,888.12, 3,939,994.76 and 1,565,977.62 is: 2,161,185.78
Step by Step Solution
- Step 1: Write the proportion equation
2,854,888.12 : 3,939,994.76 = 1,565,977.62 : x - Step 2: Convert to fraction form
2,854,888.12/3,939,994.76 = 1,565,977.62/x - Step 3: Cross multiply
2,854,888.12x = 3,939,994.76 × 1,565,977.62 - Step 4: Simplify right side
2,854,888.12x = 6,169,943,603,312.34 - Step 5: Solve for x
x = 6,169,943,603,312.34/2,854,888.12 - Step 6: Final answer
x = 2,161,185.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.