Finding the Fourth Proportional to 1,312,831.32, 1,811,852.08 and 761,668.44
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Solution
The fourth proportional to 1,312,831.32, 1,811,852.08 and 761,668.44 is: 1,051,186.49
Step by Step Solution
- Step 1: Write the proportion equation
1,312,831.32 : 1,811,852.08 = 761,668.44 : x - Step 2: Convert to fraction form
1,312,831.32/1,811,852.08 = 761,668.44/x - Step 3: Cross multiply
1,312,831.32x = 1,811,852.08 × 761,668.44 - Step 4: Simplify right side
1,312,831.32x = 1,380,030,547,284.36 - Step 5: Solve for x
x = 1,380,030,547,284.36/1,312,831.32 - Step 6: Final answer
x = 1,051,186.49
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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.