Finding the Fourth Proportional to 1,292,585.74, 1,783,306.60 and 748,424.50
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Solution
The fourth proportional to 1,292,585.74, 1,783,306.60 and 748,424.50 is: 1,032,558.47
Step by Step Solution
- Step 1: Write the proportion equation
1,292,585.74 : 1,783,306.60 = 748,424.50 : x - Step 2: Convert to fraction form
1,292,585.74/1,783,306.60 = 748,424.50/x - Step 3: Cross multiply
1,292,585.74x = 1,783,306.60 × 748,424.50 - Step 4: Simplify right side
1,292,585.74x = 1,334,670,350,451.70 - Step 5: Solve for x
x = 1,334,670,350,451.70/1,292,585.74 - Step 6: Final answer
x = 1,032,558.47
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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.