Finding the Fourth Proportional to 1,995,345.60, 2,993,455.80 and 647,278.80
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Solution
The fourth proportional to 1,995,345.60, 2,993,455.80 and 647,278.80 is: 971,060.09
Step by Step Solution
- Step 1: Write the proportion equation
1,995,345.60 : 2,993,455.80 = 647,278.80 : x - Step 2: Convert to fraction form
1,995,345.60/2,993,455.80 = 647,278.80/x - Step 3: Cross multiply
1,995,345.60x = 2,993,455.80 × 647,278.80 - Step 4: Simplify right side
1,995,345.60x = 1,937,600,478,077.04 - Step 5: Solve for x
x = 1,937,600,478,077.04/1,995,345.60 - Step 6: Final answer
x = 971,060.09
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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.