Finding the Fourth Proportional to 1,536,323.67, 2,121,125.33 and 1,374,901.20
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Solution
The fourth proportional to 1,536,323.67, 2,121,125.33 and 1,374,901.20 is: 1,898,257.39
Step by Step Solution
- Step 1: Write the proportion equation
1,536,323.67 : 2,121,125.33 = 1,374,901.20 : x - Step 2: Convert to fraction form
1,536,323.67/2,121,125.33 = 1,374,901.20/x - Step 3: Cross multiply
1,536,323.67x = 2,121,125.33 × 1,374,901.20 - Step 4: Simplify right side
1,536,323.67x = 2,916,337,765,004.65 - Step 5: Solve for x
x = 2,916,337,765,004.65/1,536,323.67 - Step 6: Final answer
x = 1,898,257.39
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1.5x scale
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.