Finding the Fourth Proportional to 877,138.23, 1,210,450.41 and 474,730.23
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Solution
The fourth proportional to 877,138.23, 1,210,450.41 and 474,730.23 is: 655,127.53
Step by Step Solution
- Step 1: Write the proportion equation
877,138.23 : 1,210,450.41 = 474,730.23 : x - Step 2: Convert to fraction form
877,138.23/1,210,450.41 = 474,730.23/x - Step 3: Cross multiply
877,138.23x = 1,210,450.41 × 474,730.23 - Step 4: Simplify right side
877,138.23x = 574,637,401,542.89 - Step 5: Solve for x
x = 574,637,401,542.89/877,138.23 - Step 6: Final answer
x = 655,127.53
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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.