Finding the Fourth Proportional to 514,420.05, 710,246.12 and 321,122.06
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Solution
The fourth proportional to 514,420.05, 710,246.12 and 321,122.06 is: 443,364.70
Step by Step Solution
- Step 1: Write the proportion equation
514,420.05 : 710,246.12 = 321,122.06 : x - Step 2: Convert to fraction form
514,420.05/710,246.12 = 321,122.06/x - Step 3: Cross multiply
514,420.05x = 710,246.12 × 321,122.06 - Step 4: Simplify right side
514,420.05x = 228,075,692,004.57 - Step 5: Solve for x
x = 228,075,692,004.57/514,420.05 - Step 6: Final answer
x = 443,364.70
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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.