Finding the Fourth Proportional to 1,272,698.26, 1,756,308.12 and 947,464.36
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Solution
The fourth proportional to 1,272,698.26, 1,756,308.12 and 947,464.36 is: 1,307,489.29
Step by Step Solution
- Step 1: Write the proportion equation
1,272,698.26 : 1,756,308.12 = 947,464.36 : x - Step 2: Convert to fraction form
1,272,698.26/1,756,308.12 = 947,464.36/x - Step 3: Cross multiply
1,272,698.26x = 1,756,308.12 × 947,464.36 - Step 4: Simplify right side
1,272,698.26x = 1,664,039,348,878.60 - Step 5: Solve for x
x = 1,664,039,348,878.60/1,272,698.26 - Step 6: Final answer
x = 1,307,489.29
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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.