Finding the Fourth Proportional to 885,688.02, 1,328,742.84 and 286,649.18
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Solution
The fourth proportional to 885,688.02, 1,328,742.84 and 286,649.18 is: 430,041.99
Step by Step Solution
- Step 1: Write the proportion equation
885,688.02 : 1,328,742.84 = 286,649.18 : x - Step 2: Convert to fraction form
885,688.02/1,328,742.84 = 286,649.18/x - Step 3: Cross multiply
885,688.02x = 1,328,742.84 × 286,649.18 - Step 4: Simplify right side
885,688.02x = 380,883,038,873.16 - Step 5: Solve for x
x = 380,883,038,873.16/885,688.02 - Step 6: Final answer
x = 430,041.99
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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.