Finding the Fourth Proportional to 1,297,737.71, 1,791,030.21 and 781,752.09
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Solution
The fourth proportional to 1,297,737.71, 1,791,030.21 and 781,752.09 is: 1,078,909.55
Step by Step Solution
- Step 1: Write the proportion equation
1,297,737.71 : 1,791,030.21 = 781,752.09 : x - Step 2: Convert to fraction form
1,297,737.71/1,791,030.21 = 781,752.09/x - Step 3: Cross multiply
1,297,737.71x = 1,791,030.21 × 781,752.09 - Step 4: Simplify right side
1,297,737.71x = 1,400,141,609,920.64 - Step 5: Solve for x
x = 1,400,141,609,920.64/1,297,737.71 - Step 6: Final answer
x = 1,078,909.55
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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.