Finding the Fourth Proportional to 1,575,728.91, 2,174,416.65 and 931,209.06
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Solution
The fourth proportional to 1,575,728.91, 2,174,416.65 and 931,209.06 is: 1,285,015.76
Step by Step Solution
- Step 1: Write the proportion equation
1,575,728.91 : 2,174,416.65 = 931,209.06 : x - Step 2: Convert to fraction form
1,575,728.91/2,174,416.65 = 931,209.06/x - Step 3: Cross multiply
1,575,728.91x = 2,174,416.65 × 931,209.06 - Step 4: Simplify right side
1,575,728.91x = 2,024,836,484,694.85 - Step 5: Solve for x
x = 2,024,836,484,694.85/1,575,728.91 - Step 6: Final answer
x = 1,285,015.76
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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.