Finding the Fourth Proportional to 501,970.80, 692,720.74 and 272,528.36
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Solution
The fourth proportional to 501,970.80, 692,720.74 and 272,528.36 is: 376,089.70
Step by Step Solution
- Step 1: Write the proportion equation
501,970.80 : 692,720.74 = 272,528.36 : x - Step 2: Convert to fraction form
501,970.80/692,720.74 = 272,528.36/x - Step 3: Cross multiply
501,970.80x = 692,720.74 × 272,528.36 - Step 4: Simplify right side
501,970.80x = 188,786,047,210.19 - Step 5: Solve for x
x = 188,786,047,210.19/501,970.80 - Step 6: Final answer
x = 376,089.70
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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.