Finding the Fourth Proportional to 521,407.19, 719,541.92 and 282,943.19
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Solution
The fourth proportional to 521,407.19, 719,541.92 and 282,943.19 is: 390,461.60
Step by Step Solution
- Step 1: Write the proportion equation
521,407.19 : 719,541.92 = 282,943.19 : x - Step 2: Convert to fraction form
521,407.19/719,541.92 = 282,943.19/x - Step 3: Cross multiply
521,407.19x = 719,541.92 × 282,943.19 - Step 4: Simplify right side
521,407.19x = 203,589,484,384.67 - Step 5: Solve for x
x = 203,589,484,384.67/521,407.19 - Step 6: Final answer
x = 390,461.60
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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.