Finding the Fourth Proportional to 399,246.30, 598,869.45 and 286,688.70
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Solution
The fourth proportional to 399,246.30, 598,869.45 and 286,688.70 is: 430,033.05
Step by Step Solution
- Step 1: Write the proportion equation
399,246.30 : 598,869.45 = 286,688.70 : x - Step 2: Convert to fraction form
399,246.30/598,869.45 = 286,688.70/x - Step 3: Cross multiply
399,246.30x = 598,869.45 × 286,688.70 - Step 4: Simplify right side
399,246.30x = 171,689,104,090.22 - Step 5: Solve for x
x = 171,689,104,090.22/399,246.30 - Step 6: Final answer
x = 430,033.05
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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.