Finding the Fourth Proportional to 1,038,923.24, 1,557,203.66 and 439,510.28
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Solution
The fourth proportional to 1,038,923.24, 1,557,203.66 and 439,510.28 is: 658,765.72
Step by Step Solution
- Step 1: Write the proportion equation
1,038,923.24 : 1,557,203.66 = 439,510.28 : x - Step 2: Convert to fraction form
1,038,923.24/1,557,203.66 = 439,510.28/x - Step 3: Cross multiply
1,038,923.24x = 1,557,203.66 × 439,510.28 - Step 4: Simplify right side
1,038,923.24x = 684,407,016,623.63 - Step 5: Solve for x
x = 684,407,016,623.63/1,038,923.24 - Step 6: Final answer
x = 658,765.72
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1.5x scale
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.