Finding the Fourth Proportional to 549,735.84, 823,656.87 and 429,745.95
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Solution
The fourth proportional to 549,735.84, 823,656.87 and 429,745.95 is: 643,878.71
Step by Step Solution
- Step 1: Write the proportion equation
549,735.84 : 823,656.87 = 429,745.95 : x - Step 2: Convert to fraction form
549,735.84/823,656.87 = 429,745.95/x - Step 3: Cross multiply
549,735.84x = 823,656.87 × 429,745.95 - Step 4: Simplify right side
549,735.84x = 353,963,204,072.18 - Step 5: Solve for x
x = 353,963,204,072.18/549,735.84 - Step 6: Final answer
x = 643,878.71
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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.