Finding the Fourth Proportional to 748,075.99, 1,122,278.07 and 242,688.09
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Solution
The fourth proportional to 748,075.99, 1,122,278.07 and 242,688.09 is: 364,085.36
Step by Step Solution
- Step 1: Write the proportion equation
748,075.99 : 1,122,278.07 = 242,688.09 : x - Step 2: Convert to fraction form
748,075.99/1,122,278.07 = 242,688.09/x - Step 3: Cross multiply
748,075.99x = 1,122,278.07 × 242,688.09 - Step 4: Simplify right side
748,075.99x = 272,363,518,143.50 - Step 5: Solve for x
x = 272,363,518,143.50/748,075.99 - Step 6: Final answer
x = 364,085.36
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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.