Finding the Fourth Proportional to 900,904.19, 1,243,124.82 and 538,250.99
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Solution
The fourth proportional to 900,904.19, 1,243,124.82 and 538,250.99 is: 742,712.90
Step by Step Solution
- Step 1: Write the proportion equation
900,904.19 : 1,243,124.82 = 538,250.99 : x - Step 2: Convert to fraction form
900,904.19/1,243,124.82 = 538,250.99/x - Step 3: Cross multiply
900,904.19x = 1,243,124.82 × 538,250.99 - Step 4: Simplify right side
900,904.19x = 669,113,158,842.95 - Step 5: Solve for x
x = 669,113,158,842.95/900,904.19 - Step 6: Final answer
x = 742,712.90
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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.