Finding the Fourth Proportional to 1,354,306.64, 1,868,902.67 and 742,438.49
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Solution
The fourth proportional to 1,354,306.64, 1,868,902.67 and 742,438.49 is: 1,024,542.92
Step by Step Solution
- Step 1: Write the proportion equation
1,354,306.64 : 1,868,902.67 = 742,438.49 : x - Step 2: Convert to fraction form
1,354,306.64/1,868,902.67 = 742,438.49/x - Step 3: Cross multiply
1,354,306.64x = 1,868,902.67 × 742,438.49 - Step 4: Simplify right side
1,354,306.64x = 1,387,545,275,353.76 - Step 5: Solve for x
x = 1,387,545,275,353.76/1,354,306.64 - Step 6: Final answer
x = 1,024,542.92
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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.