Finding the Fourth Proportional to 579,465.12, 869,447.38 and 313,412.96
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Solution
The fourth proportional to 579,465.12, 869,447.38 and 313,412.96 is: 470,254.49
Step by Step Solution
- Step 1: Write the proportion equation
579,465.12 : 869,447.38 = 313,412.96 : x - Step 2: Convert to fraction form
579,465.12/869,447.38 = 313,412.96/x - Step 3: Cross multiply
579,465.12x = 869,447.38 × 313,412.96 - Step 4: Simplify right side
579,465.12x = 272,496,076,930.05 - Step 5: Solve for x
x = 272,496,076,930.05/579,465.12 - Step 6: Final answer
x = 470,254.49
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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.