Finding the Fourth Proportional to 1,887,272.28, 2,604,544.68 and 1,421,291.80
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Solution
The fourth proportional to 1,887,272.28, 2,604,544.68 and 1,421,291.80 is: 1,961,464.72
Step by Step Solution
- Step 1: Write the proportion equation
1,887,272.28 : 2,604,544.68 = 1,421,291.80 : x - Step 2: Convert to fraction form
1,887,272.28/2,604,544.68 = 1,421,291.80/x - Step 3: Cross multiply
1,887,272.28x = 2,604,544.68 × 1,421,291.80 - Step 4: Simplify right side
1,887,272.28x = 3,701,817,996,417.62 - Step 5: Solve for x
x = 3,701,817,996,417.62/1,887,272.28 - Step 6: Final answer
x = 1,961,464.72
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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.