Finding the Fourth Proportional to 771,284,277.09, 1,064,698,031.57 and 520,728,099.75
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Solution
The fourth proportional to 771,284,277.09, 1,064,698,031.57 and 520,728,099.75 is: 718,824,691.82
Step by Step Solution
- Step 1: Write the proportion equation
771,284,277.09 : 1,064,698,031.57 = 520,728,099.75 : x - Step 2: Convert to fraction form
771,284,277.09/1,064,698,031.57 = 520,728,099.75/x - Step 3: Cross multiply
771,284,277.09x = 1,064,698,031.57 × 520,728,099.75 - Step 4: Simplify right side
771,284,277.09x = 554,418,182,784,408,000 - Step 5: Solve for x
x = 554,418,182,784,408,000/771,284,277.09 - Step 6: Final answer
x = 718,824,691.82
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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.