Finding the Fourth Proportional to 4,307,693.80, 6,461,483.10 and 1,315,892.20
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Solution
The fourth proportional to 4,307,693.80, 6,461,483.10 and 1,315,892.20 is: 1,973,820.70
Step by Step Solution
- Step 1: Write the proportion equation
4,307,693.80 : 6,461,483.10 = 1,315,892.20 : x - Step 2: Convert to fraction form
4,307,693.80/6,461,483.10 = 1,315,892.20/x - Step 3: Cross multiply
4,307,693.80x = 6,461,483.10 × 1,315,892.20 - Step 4: Simplify right side
4,307,693.80x = 8,502,615,211,721.82 - Step 5: Solve for x
x = 8,502,615,211,721.82/4,307,693.80 - Step 6: Final answer
x = 1,973,820.70
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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.