Finding the Fourth Proportional to 1,125,378.56, 1,688,070.58 and 283,930.31
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Solution
The fourth proportional to 1,125,378.56, 1,688,070.58 and 283,930.31 is: 425,896.16
Step by Step Solution
- Step 1: Write the proportion equation
1,125,378.56 : 1,688,070.58 = 283,930.31 : x - Step 2: Convert to fraction form
1,125,378.56/1,688,070.58 = 283,930.31/x - Step 3: Cross multiply
1,125,378.56x = 1,688,070.58 × 283,930.31 - Step 4: Simplify right side
1,125,378.56x = 479,294,406,591.63 - Step 5: Solve for x
x = 479,294,406,591.63/1,125,378.56 - Step 6: Final answer
x = 425,896.16
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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.