Finding the Fourth Proportional to 1,387,952.44, 1,915,363.55 and 776,106.39
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Solution
The fourth proportional to 1,387,952.44, 1,915,363.55 and 776,106.39 is: 1,071,020.76
Step by Step Solution
- Step 1: Write the proportion equation
1,387,952.44 : 1,915,363.55 = 776,106.39 : x - Step 2: Convert to fraction form
1,387,952.44/1,915,363.55 = 776,106.39/x - Step 3: Cross multiply
1,387,952.44x = 1,915,363.55 × 776,106.39 - Step 4: Simplify right side
1,387,952.44x = 1,486,525,881,659.14 - Step 5: Solve for x
x = 1,486,525,881,659.14/1,387,952.44 - Step 6: Final answer
x = 1,071,020.76
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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.