Finding the Fourth Proportional to 893,782.70, 1,338,878.99 and 413,337.08
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Solution
The fourth proportional to 893,782.70, 1,338,878.99 and 413,337.08 is: 619,175.47
Step by Step Solution
- Step 1: Write the proportion equation
893,782.70 : 1,338,878.99 = 413,337.08 : x - Step 2: Convert to fraction form
893,782.70/1,338,878.99 = 413,337.08/x - Step 3: Cross multiply
893,782.70x = 1,338,878.99 × 413,337.08 - Step 4: Simplify right side
893,782.70x = 553,408,323,438.87 - Step 5: Solve for x
x = 553,408,323,438.87/893,782.70 - Step 6: Final answer
x = 619,175.47
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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.