Finding the Fourth Proportional to 1,007,848.99, 1,390,341.66 and 644,981.95
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Solution
The fourth proportional to 1,007,848.99, 1,390,341.66 and 644,981.95 is: 889,761.55
Step by Step Solution
- Step 1: Write the proportion equation
1,007,848.99 : 1,390,341.66 = 644,981.95 : x - Step 2: Convert to fraction form
1,007,848.99/1,390,341.66 = 644,981.95/x - Step 3: Cross multiply
1,007,848.99x = 1,390,341.66 × 644,981.95 - Step 4: Simplify right side
1,007,848.99x = 896,745,275,033.04 - Step 5: Solve for x
x = 896,745,275,033.04/1,007,848.99 - Step 6: Final answer
x = 889,761.55
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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.