Finding the Fourth Proportional to 1,664,565.07, 2,297,164.99 and 939,438.12
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Solution
The fourth proportional to 1,664,565.07, 2,297,164.99 and 939,438.12 is: 1,296,461.40
Step by Step Solution
- Step 1: Write the proportion equation
1,664,565.07 : 2,297,164.99 = 939,438.12 : x - Step 2: Convert to fraction form
1,664,565.07/2,297,164.99 = 939,438.12/x - Step 3: Cross multiply
1,664,565.07x = 2,297,164.99 × 939,438.12 - Step 4: Simplify right side
1,664,565.07x = 2,158,044,359,535.42 - Step 5: Solve for x
x = 2,158,044,359,535.42/1,664,565.07 - Step 6: Final answer
x = 1,296,461.40
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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.