Finding the Fourth Proportional to 1,422,955.58, 1,963,652.91 and 778,370.14
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Solution
The fourth proportional to 1,422,955.58, 1,963,652.91 and 778,370.14 is: 1,074,136.68
Step by Step Solution
- Step 1: Write the proportion equation
1,422,955.58 : 1,963,652.91 = 778,370.14 : x - Step 2: Convert to fraction form
1,422,955.58/1,963,652.91 = 778,370.14/x - Step 3: Cross multiply
1,422,955.58x = 1,963,652.91 × 778,370.14 - Step 4: Simplify right side
1,422,955.58x = 1,528,448,780,649.84 - Step 5: Solve for x
x = 1,528,448,780,649.84/1,422,955.58 - Step 6: Final answer
x = 1,074,136.68
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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.