Finding the Fourth Proportional to 1,539,818.63, 2,124,963.47 and 851,536.81
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Solution
The fourth proportional to 1,539,818.63, 2,124,963.47 and 851,536.81 is: 1,175,128.41
Step by Step Solution
- Step 1: Write the proportion equation
1,539,818.63 : 2,124,963.47 = 851,536.81 : x - Step 2: Convert to fraction form
1,539,818.63/2,124,963.47 = 851,536.81/x - Step 3: Cross multiply
1,539,818.63x = 2,124,963.47 × 851,536.81 - Step 4: Simplify right side
1,539,818.63x = 1,809,484,617,593.71 - Step 5: Solve for x
x = 1,809,484,617,593.71/1,539,818.63 - Step 6: Final answer
x = 1,175,128.41
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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.