Finding the Fourth Proportional to 391,565.80, 587,348.70 and 368,237.80
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Solution
The fourth proportional to 391,565.80, 587,348.70 and 368,237.80 is: 552,356.70
Step by Step Solution
- Step 1: Write the proportion equation
391,565.80 : 587,348.70 = 368,237.80 : x - Step 2: Convert to fraction form
391,565.80/587,348.70 = 368,237.80/x - Step 3: Cross multiply
391,565.80x = 587,348.70 × 368,237.80 - Step 4: Simplify right side
391,565.80x = 216,283,993,120.86 - Step 5: Solve for x
x = 216,283,993,120.86/391,565.80 - Step 6: Final answer
x = 552,356.70
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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.