Finding the Fourth Proportional to 1,422,910.23, 1,963,574.37 and 778,316.55
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Solution
The fourth proportional to 1,422,910.23, 1,963,574.37 and 778,316.55 is: 1,074,054.00
Step by Step Solution
- Step 1: Write the proportion equation
1,422,910.23 : 1,963,574.37 = 778,316.55 : x - Step 2: Convert to fraction form
1,422,910.23/1,963,574.37 = 778,316.55/x - Step 3: Cross multiply
1,422,910.23x = 1,963,574.37 × 778,316.55 - Step 4: Simplify right side
1,422,910.23x = 1,528,282,429,326.82 - Step 5: Solve for x
x = 1,528,282,429,326.82/1,422,910.23 - Step 6: Final answer
x = 1,074,054.00
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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.