Finding the Fourth Proportional to 1,421,660.25, 2,132,490.67 and 475,031.07
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Solution
The fourth proportional to 1,421,660.25, 2,132,490.67 and 475,031.07 is: 712,546.70
Step by Step Solution
- Step 1: Write the proportion equation
1,421,660.25 : 2,132,490.67 = 475,031.07 : x - Step 2: Convert to fraction form
1,421,660.25/2,132,490.67 = 475,031.07/x - Step 3: Cross multiply
1,421,660.25x = 2,132,490.67 × 475,031.07 - Step 4: Simplify right side
1,421,660.25x = 1,012,999,323,547.54 - Step 5: Solve for x
x = 1,012,999,323,547.54/1,421,660.25 - Step 6: Final answer
x = 712,546.70
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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.