Finding the Fourth Proportional to 734,648.58, 1,013,830.08 and 412,381.98
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Solution
The fourth proportional to 734,648.58, 1,013,830.08 and 412,381.98 is: 569,095.57
Step by Step Solution
- Step 1: Write the proportion equation
734,648.58 : 1,013,830.08 = 412,381.98 : x - Step 2: Convert to fraction form
734,648.58/1,013,830.08 = 412,381.98/x - Step 3: Cross multiply
734,648.58x = 1,013,830.08 × 412,381.98 - Step 4: Simplify right side
734,648.58x = 418,085,255,773.96 - Step 5: Solve for x
x = 418,085,255,773.96/734,648.58 - Step 6: Final answer
x = 569,095.57
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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.