Finding the Fourth Proportional to 1,230,646.93, 1,698,378 and 686,888.80
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Solution
The fourth proportional to 1,230,646.93, 1,698,378 and 686,888.80 is: 947,954.12
Step by Step Solution
- Step 1: Write the proportion equation
1,230,646.93 : 1,698,378 = 686,888.80 : x - Step 2: Convert to fraction form
1,230,646.93/1,698,378 = 686,888.80/x - Step 3: Cross multiply
1,230,646.93x = 1,698,378 × 686,888.80 - Step 4: Simplify right side
1,230,646.93x = 1,166,596,826,366.40 - Step 5: Solve for x
x = 1,166,596,826,366.40/1,230,646.93 - Step 6: Final answer
x = 947,954.12
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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.