Finding the Fourth Proportional to 909,669.24, 1,254,393.81 and 634,347.18
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Solution
The fourth proportional to 909,669.24, 1,254,393.81 and 634,347.18 is: 874,736.82
Step by Step Solution
- Step 1: Write the proportion equation
909,669.24 : 1,254,393.81 = 634,347.18 : x - Step 2: Convert to fraction form
909,669.24/1,254,393.81 = 634,347.18/x - Step 3: Cross multiply
909,669.24x = 1,254,393.81 × 634,347.18 - Step 4: Simplify right side
909,669.24x = 795,721,175,982.96 - Step 5: Solve for x
x = 795,721,175,982.96/909,669.24 - Step 6: Final answer
x = 874,736.82
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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.