Finding the Fourth Proportional to 512,364.70, 768,547.05 and 453,315.70
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Solution
The fourth proportional to 512,364.70, 768,547.05 and 453,315.70 is: 679,973.55
Step by Step Solution
- Step 1: Write the proportion equation
512,364.70 : 768,547.05 = 453,315.70 : x - Step 2: Convert to fraction form
512,364.70/768,547.05 = 453,315.70/x - Step 3: Cross multiply
512,364.70x = 768,547.05 × 453,315.70 - Step 4: Simplify right side
512,364.70x = 348,394,443,953.69 - Step 5: Solve for x
x = 348,394,443,953.69/512,364.70 - Step 6: Final answer
x = 679,973.55
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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.