Finding the Fourth Proportional to 1,103,964.95, 1,523,248.08 and 644,990.80
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Solution
The fourth proportional to 1,103,964.95, 1,523,248.08 and 644,990.80 is: 889,956.70
Step by Step Solution
- Step 1: Write the proportion equation
1,103,964.95 : 1,523,248.08 = 644,990.80 : x - Step 2: Convert to fraction form
1,103,964.95/1,523,248.08 = 644,990.80/x - Step 3: Cross multiply
1,103,964.95x = 1,523,248.08 × 644,990.80 - Step 4: Simplify right side
1,103,964.95x = 982,480,997,974.99 - Step 5: Solve for x
x = 982,480,997,974.99/1,103,964.95 - Step 6: Final answer
x = 889,956.70
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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.