Finding the Fourth Proportional to 1,432,495.74, 1,977,124.93 and 821,058.31
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Solution
The fourth proportional to 1,432,495.74, 1,977,124.93 and 821,058.31 is: 1,133,221.41
Step by Step Solution
- Step 1: Write the proportion equation
1,432,495.74 : 1,977,124.93 = 821,058.31 : x - Step 2: Convert to fraction form
1,432,495.74/1,977,124.93 = 821,058.31/x - Step 3: Cross multiply
1,432,495.74x = 1,977,124.93 × 821,058.31 - Step 4: Simplify right side
1,432,495.74x = 1,623,334,846,689.21 - Step 5: Solve for x
x = 1,623,334,846,689.21/1,432,495.74 - Step 6: Final answer
x = 1,133,221.41
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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.