Finding the Fourth Proportional to 1,316,386.26, 1,974,579.40 and 319,114.26
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Solution
The fourth proportional to 1,316,386.26, 1,974,579.40 and 319,114.26 is: 478,671.39
Step by Step Solution
- Step 1: Write the proportion equation
1,316,386.26 : 1,974,579.40 = 319,114.26 : x - Step 2: Convert to fraction form
1,316,386.26/1,974,579.40 = 319,114.26/x - Step 3: Cross multiply
1,316,386.26x = 1,974,579.40 × 319,114.26 - Step 4: Simplify right side
1,316,386.26x = 630,116,444,042.24 - Step 5: Solve for x
x = 630,116,444,042.24/1,316,386.26 - Step 6: Final answer
x = 478,671.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.