Finding the Fourth Proportional to 1,212,479.02, 1,673,182.50 and 668,637.70
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Solution
The fourth proportional to 1,212,479.02, 1,673,182.50 and 668,637.70 is: 922,698.77
Step by Step Solution
- Step 1: Write the proportion equation
1,212,479.02 : 1,673,182.50 = 668,637.70 : x - Step 2: Convert to fraction form
1,212,479.02/1,673,182.50 = 668,637.70/x - Step 3: Cross multiply
1,212,479.02x = 1,673,182.50 × 668,637.70 - Step 4: Simplify right side
1,212,479.02x = 1,118,752,898,480.25 - Step 5: Solve for x
x = 1,118,752,898,480.25/1,212,479.02 - Step 6: Final answer
x = 922,698.77
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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.