Finding the Fourth Proportional to 742,679.23, 1,024,937 and 420,461.23
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Solution
The fourth proportional to 742,679.23, 1,024,937 and 420,461.23 is: 580,258.95
Step by Step Solution
- Step 1: Write the proportion equation
742,679.23 : 1,024,937 = 420,461.23 : x - Step 2: Convert to fraction form
742,679.23/1,024,937 = 420,461.23/x - Step 3: Cross multiply
742,679.23x = 1,024,937 × 420,461.23 - Step 4: Simplify right side
742,679.23x = 430,946,271,692.51 - Step 5: Solve for x
x = 430,946,271,692.51/742,679.23 - Step 6: Final answer
x = 580,258.95
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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.