Finding the Fourth Proportional to 1,230,904.08, 1,698,733.22 and 687,146.02
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Solution
The fourth proportional to 1,230,904.08, 1,698,733.22 and 687,146.02 is: 948,309.28
Step by Step Solution
- Step 1: Write the proportion equation
1,230,904.08 : 1,698,733.22 = 687,146.02 : x - Step 2: Convert to fraction form
1,230,904.08/1,698,733.22 = 687,146.02/x - Step 3: Cross multiply
1,230,904.08x = 1,698,733.22 × 687,146.02 - Step 4: Simplify right side
1,230,904.08x = 1,167,277,763,482.22 - Step 5: Solve for x
x = 1,167,277,763,482.22/1,230,904.08 - Step 6: Final answer
x = 948,309.28
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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.