Finding the Fourth Proportional to 915,281.28, 1,263,088.14 and 507,382.09
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Solution
The fourth proportional to 915,281.28, 1,263,088.14 and 507,382.09 is: 700,187.26
Step by Step Solution
- Step 1: Write the proportion equation
915,281.28 : 1,263,088.14 = 507,382.09 : x - Step 2: Convert to fraction form
915,281.28/1,263,088.14 = 507,382.09/x - Step 3: Cross multiply
915,281.28x = 1,263,088.14 × 507,382.09 - Step 4: Simplify right side
915,281.28x = 640,868,295,267.01 - Step 5: Solve for x
x = 640,868,295,267.01/915,281.28 - Step 6: Final answer
x = 700,187.26
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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.