Finding the Fourth Proportional to 1,106,646.12, 1,523,955.74 and 961,385.58
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Solution
The fourth proportional to 1,106,646.12, 1,523,955.74 and 961,385.58 is: 1,323,918.32
Step by Step Solution
- Step 1: Write the proportion equation
1,106,646.12 : 1,523,955.74 = 961,385.58 : x - Step 2: Convert to fraction form
1,106,646.12/1,523,955.74 = 961,385.58/x - Step 3: Cross multiply
1,106,646.12x = 1,523,955.74 × 961,385.58 - Step 4: Simplify right side
1,106,646.12x = 1,465,109,068,187.30 - Step 5: Solve for x
x = 1,465,109,068,187.30/1,106,646.12 - Step 6: Final answer
x = 1,323,918.32
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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.