Finding the Fourth Proportional to 1,092,135.10, 1,638,202.65 and 977,973.70
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Solution
The fourth proportional to 1,092,135.10, 1,638,202.65 and 977,973.70 is: 1,466,960.55
Step by Step Solution
- Step 1: Write the proportion equation
1,092,135.10 : 1,638,202.65 = 977,973.70 : x - Step 2: Convert to fraction form
1,092,135.10/1,638,202.65 = 977,973.70/x - Step 3: Cross multiply
1,092,135.10x = 1,638,202.65 × 977,973.70 - Step 4: Simplify right side
1,092,135.10x = 1,602,119,106,970.31 - Step 5: Solve for x
x = 1,602,119,106,970.31/1,092,135.10 - Step 6: Final answer
x = 1,466,960.55
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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.