Finding the Fourth Proportional to 1,319,866.31, 1,821,415.51 and 716,254.31
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Solution
The fourth proportional to 1,319,866.31, 1,821,415.51 and 716,254.31 is: 988,430.95
Step by Step Solution
- Step 1: Write the proportion equation
1,319,866.31 : 1,821,415.51 = 716,254.31 : x - Step 2: Convert to fraction form
1,319,866.31/1,821,415.51 = 716,254.31/x - Step 3: Cross multiply
1,319,866.31x = 1,821,415.51 × 716,254.31 - Step 4: Simplify right side
1,319,866.31x = 1,304,596,714,787.20 - Step 5: Solve for x
x = 1,304,596,714,787.20/1,319,866.31 - Step 6: Final answer
x = 988,430.95
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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.