Finding the Fourth Proportional to 539,113.70, 808,670.55 and 329,161.70
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Solution
The fourth proportional to 539,113.70, 808,670.55 and 329,161.70 is: 493,742.55
Step by Step Solution
- Step 1: Write the proportion equation
539,113.70 : 808,670.55 = 329,161.70 : x - Step 2: Convert to fraction form
539,113.70/808,670.55 = 329,161.70/x - Step 3: Cross multiply
539,113.70x = 808,670.55 × 329,161.70 - Step 4: Simplify right side
539,113.70x = 266,183,372,977.94 - Step 5: Solve for x
x = 266,183,372,977.94/539,113.70 - Step 6: Final answer
x = 493,742.55
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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.