Finding the Fourth Proportional to 1,330,017.74, 1,995,307.14 and 431,389.68
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Solution
The fourth proportional to 1,330,017.74, 1,995,307.14 and 431,389.68 is: 647,175.51
Step by Step Solution
- Step 1: Write the proportion equation
1,330,017.74 : 1,995,307.14 = 431,389.68 : x - Step 2: Convert to fraction form
1,330,017.74/1,995,307.14 = 431,389.68/x - Step 3: Cross multiply
1,330,017.74x = 1,995,307.14 × 431,389.68 - Step 4: Simplify right side
1,330,017.74x = 860,754,908,626.32 - Step 5: Solve for x
x = 860,754,908,626.32/1,330,017.74 - Step 6: Final answer
x = 647,175.51
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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.