Finding the Fourth Proportional to 2,013,412.99, 2,778,510.38 and 1,107,994.99
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Solution
The fourth proportional to 2,013,412.99, 2,778,510.38 and 1,107,994.99 is: 1,529,033.34
Step by Step Solution
- Step 1: Write the proportion equation
2,013,412.99 : 2,778,510.38 = 1,107,994.99 : x - Step 2: Convert to fraction form
2,013,412.99/2,778,510.38 = 1,107,994.99/x - Step 3: Cross multiply
2,013,412.99x = 2,778,510.38 × 1,107,994.99 - Step 4: Simplify right side
2,013,412.99x = 3,078,575,580,703.00 - Step 5: Solve for x
x = 3,078,575,580,703.00/2,013,412.99 - Step 6: Final answer
x = 1,529,033.34
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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.