Finding the Fourth Proportional to 1,415,880.74, 1,953,905.88 and 771,301.40
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Solution
The fourth proportional to 1,415,880.74, 1,953,905.88 and 771,301.40 is: 1,064,390.73
Step by Step Solution
- Step 1: Write the proportion equation
1,415,880.74 : 1,953,905.88 = 771,301.40 : x - Step 2: Convert to fraction form
1,415,880.74/1,953,905.88 = 771,301.40/x - Step 3: Cross multiply
1,415,880.74x = 1,953,905.88 × 771,301.40 - Step 4: Simplify right side
1,415,880.74x = 1,507,050,340,712.23 - Step 5: Solve for x
x = 1,507,050,340,712.23/1,415,880.74 - Step 6: Final answer
x = 1,064,390.73
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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.