Finding the Fourth Proportional to 771,679.99, 1,064,925.84 and 427,523.23
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Solution
The fourth proportional to 771,679.99, 1,064,925.84 and 427,523.23 is: 589,986.19
Step by Step Solution
- Step 1: Write the proportion equation
771,679.99 : 1,064,925.84 = 427,523.23 : x - Step 2: Convert to fraction form
771,679.99/1,064,925.84 = 427,523.23/x - Step 3: Cross multiply
771,679.99x = 1,064,925.84 × 427,523.23 - Step 4: Simplify right side
771,679.99x = 455,280,534,827.26 - Step 5: Solve for x
x = 455,280,534,827.26/771,679.99 - Step 6: Final answer
x = 589,986.19
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1.5x scale
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.