Finding the Fourth Proportional to 651,798.70, 977,114.85 and 427,266.70
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Solution
The fourth proportional to 651,798.70, 977,114.85 and 427,266.70 is: 640,517.75
Step by Step Solution
- Step 1: Write the proportion equation
651,798.70 : 977,114.85 = 427,266.70 : x - Step 2: Convert to fraction form
651,798.70/977,114.85 = 427,266.70/x - Step 3: Cross multiply
651,798.70x = 977,114.85 × 427,266.70 - Step 4: Simplify right side
651,798.70x = 417,488,637,480.50 - Step 5: Solve for x
x = 417,488,637,480.50/651,798.70 - Step 6: Final answer
x = 640,517.75
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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.