Finding the Fourth Proportional to 1,386,001.64, 1,912,661.91 and 774,162.99
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Solution
The fourth proportional to 1,386,001.64, 1,912,661.91 and 774,162.99 is: 1,068,333.56
Step by Step Solution
- Step 1: Write the proportion equation
1,386,001.64 : 1,912,661.91 = 774,162.99 : x - Step 2: Convert to fraction form
1,386,001.64/1,912,661.91 = 774,162.99/x - Step 3: Cross multiply
1,386,001.64x = 1,912,661.91 × 774,162.99 - Step 4: Simplify right side
1,386,001.64x = 1,480,712,063,104.71 - Step 5: Solve for x
x = 1,480,712,063,104.71/1,386,001.64 - Step 6: Final answer
x = 1,068,333.56
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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.