Finding the Fourth Proportional to 579,461.14, 869,441.46 and 313,408.95
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Solution
The fourth proportional to 579,461.14, 869,441.46 and 313,408.95 is: 470,248.50
Step by Step Solution
- Step 1: Write the proportion equation
579,461.14 : 869,441.46 = 313,408.95 : x - Step 2: Convert to fraction form
579,461.14/869,441.46 = 313,408.95/x - Step 3: Cross multiply
579,461.14x = 869,441.46 × 313,408.95 - Step 4: Simplify right side
579,461.14x = 272,490,732,392.30 - Step 5: Solve for x
x = 272,490,732,392.30/579,461.14 - Step 6: Final answer
x = 470,248.50
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1.5x scale
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.