Finding the Fourth Proportional to 1,432,495.61, 1,977,124.74 and 821,058.18
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Solution
The fourth proportional to 1,432,495.61, 1,977,124.74 and 821,058.18 is: 1,133,221.24
Step by Step Solution
- Step 1: Write the proportion equation
1,432,495.61 : 1,977,124.74 = 821,058.18 : x - Step 2: Convert to fraction form
1,432,495.61/1,977,124.74 = 821,058.18/x - Step 3: Cross multiply
1,432,495.61x = 1,977,124.74 × 821,058.18 - Step 4: Simplify right side
1,432,495.61x = 1,623,334,440,657.37 - Step 5: Solve for x
x = 1,623,334,440,657.37/1,432,495.61 - Step 6: Final answer
x = 1,133,221.24
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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.