Finding the Fourth Proportional to 1,354,403.60, 2,031,605.40 and 1,207,437.20
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Solution
The fourth proportional to 1,354,403.60, 2,031,605.40 and 1,207,437.20 is: 1,811,155.80
Step by Step Solution
- Step 1: Write the proportion equation
1,354,403.60 : 2,031,605.40 = 1,207,437.20 : x - Step 2: Convert to fraction form
1,354,403.60/2,031,605.40 = 1,207,437.20/x - Step 3: Cross multiply
1,354,403.60x = 2,031,605.40 × 1,207,437.20 - Step 4: Simplify right side
1,354,403.60x = 2,453,035,935,680.88 - Step 5: Solve for x
x = 2,453,035,935,680.88/1,354,403.60 - Step 6: Final answer
x = 1,811,155.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.