Finding the Fourth Proportional to 1,630,805.07, 2,250,541.49 and 905,720.71
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Solution
The fourth proportional to 1,630,805.07, 2,250,541.49 and 905,720.71 is: 1,249,911.52
Step by Step Solution
- Step 1: Write the proportion equation
1,630,805.07 : 2,250,541.49 = 905,720.71 : x - Step 2: Convert to fraction form
1,630,805.07/2,250,541.49 = 905,720.71/x - Step 3: Cross multiply
1,630,805.07x = 2,250,541.49 × 905,720.71 - Step 4: Simplify right side
1,630,805.07x = 2,038,362,036,207.26 - Step 5: Solve for x
x = 2,038,362,036,207.26/1,630,805.07 - Step 6: Final answer
x = 1,249,911.52
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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.