Finding the Fourth Proportional to 1,315,126.74, 1,814,875.29 and 742,288.26
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Solution
The fourth proportional to 1,315,126.74, 1,814,875.29 and 742,288.26 is: 1,024,358.02
Step by Step Solution
- Step 1: Write the proportion equation
1,315,126.74 : 1,814,875.29 = 742,288.26 : x - Step 2: Convert to fraction form
1,315,126.74/1,814,875.29 = 742,288.26/x - Step 3: Cross multiply
1,315,126.74x = 1,814,875.29 × 742,288.26 - Step 4: Simplify right side
1,315,126.74x = 1,347,160,621,131.10 - Step 5: Solve for x
x = 1,347,160,621,131.10/1,315,126.74 - Step 6: Final answer
x = 1,024,358.02
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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.