Finding the Fourth Proportional to 1,115,444.08, 1,539,308.72 and 632,101.28
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Solution
The fourth proportional to 1,115,444.08, 1,539,308.72 and 632,101.28 is: 872,297.44
Step by Step Solution
- Step 1: Write the proportion equation
1,115,444.08 : 1,539,308.72 = 632,101.28 : x - Step 2: Convert to fraction form
1,115,444.08/1,539,308.72 = 632,101.28/x - Step 3: Cross multiply
1,115,444.08x = 1,539,308.72 × 632,101.28 - Step 4: Simplify right side
1,115,444.08x = 972,999,012,227.16 - Step 5: Solve for x
x = 972,999,012,227.16/1,115,444.08 - Step 6: Final answer
x = 872,297.44
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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.