Finding the Fourth Proportional to 1,038,207.70, 1,557,311.55 and 1,014,879.70
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Solution
The fourth proportional to 1,038,207.70, 1,557,311.55 and 1,014,879.70 is: 1,522,319.55
Step by Step Solution
- Step 1: Write the proportion equation
1,038,207.70 : 1,557,311.55 = 1,014,879.70 : x - Step 2: Convert to fraction form
1,038,207.70/1,557,311.55 = 1,014,879.70/x - Step 3: Cross multiply
1,038,207.70x = 1,557,311.55 × 1,014,879.70 - Step 4: Simplify right side
1,038,207.70x = 1,580,483,878,670.54 - Step 5: Solve for x
x = 1,580,483,878,670.54/1,038,207.70 - Step 6: Final answer
x = 1,522,319.55
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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.