Finding the Fourth Proportional to 2,013,987.84, 2,779,568.64 and 1,209,223.68
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Solution
The fourth proportional to 2,013,987.84, 2,779,568.64 and 1,209,223.68 is: 1,668,888.04
Step by Step Solution
- Step 1: Write the proportion equation
2,013,987.84 : 2,779,568.64 = 1,209,223.68 : x - Step 2: Convert to fraction form
2,013,987.84/2,779,568.64 = 1,209,223.68/x - Step 3: Cross multiply
2,013,987.84x = 2,779,568.64 × 1,209,223.68 - Step 4: Simplify right side
2,013,987.84x = 3,361,120,219,673.40 - Step 5: Solve for x
x = 3,361,120,219,673.40/2,013,987.84 - Step 6: Final answer
x = 1,668,888.04
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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.