Finding the Fourth Proportional to 5,253,279.12, 7,249,525.20 and 2,838,831.12
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Solution
The fourth proportional to 5,253,279.12, 7,249,525.20 and 2,838,831.12 is: 3,917,586.95
Step by Step Solution
- Step 1: Write the proportion equation
5,253,279.12 : 7,249,525.20 = 2,838,831.12 : x - Step 2: Convert to fraction form
5,253,279.12/7,249,525.20 = 2,838,831.12/x - Step 3: Cross multiply
5,253,279.12x = 7,249,525.20 × 2,838,831.12 - Step 4: Simplify right side
5,253,279.12x = 20,580,177,742,984.23 - Step 5: Solve for x
x = 20,580,177,742,984.23/5,253,279.12 - Step 6: Final answer
x = 3,917,586.95
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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.