Finding the Fourth Proportional to 1,038,695.70, 1,558,043.55 and 478,823.70
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Solution
The fourth proportional to 1,038,695.70, 1,558,043.55 and 478,823.70 is: 718,235.55
Step by Step Solution
- Step 1: Write the proportion equation
1,038,695.70 : 1,558,043.55 = 478,823.70 : x - Step 2: Convert to fraction form
1,038,695.70/1,558,043.55 = 478,823.70/x - Step 3: Cross multiply
1,038,695.70x = 1,558,043.55 × 478,823.70 - Step 4: Simplify right side
1,038,695.70x = 746,028,177,372.14 - Step 5: Solve for x
x = 746,028,177,372.14/1,038,695.70 - Step 6: Final answer
x = 718,235.55
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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.