Finding the Fourth Proportional to 3,162,310.74, 4,363,987.86 and 1,712,005.20
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Solution
The fourth proportional to 3,162,310.74, 4,363,987.86 and 1,712,005.20 is: 2,362,566.66
Step by Step Solution
- Step 1: Write the proportion equation
3,162,310.74 : 4,363,987.86 = 1,712,005.20 : x - Step 2: Convert to fraction form
3,162,310.74/4,363,987.86 = 1,712,005.20/x - Step 3: Cross multiply
3,162,310.74x = 4,363,987.86 × 1,712,005.20 - Step 4: Simplify right side
3,162,310.74x = 7,471,169,909,056.87 - Step 5: Solve for x
x = 7,471,169,909,056.87/3,162,310.74 - Step 6: Final answer
x = 2,362,566.66
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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.