Finding the Fourth Proportional to 1,565,692.40, 2,160,618.80 and 921,154.07
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Solution
The fourth proportional to 1,565,692.40, 2,160,618.80 and 921,154.07 is: 1,271,171.01
Step by Step Solution
- Step 1: Write the proportion equation
1,565,692.40 : 2,160,618.80 = 921,154.07 : x - Step 2: Convert to fraction form
1,565,692.40/2,160,618.80 = 921,154.07/x - Step 3: Cross multiply
1,565,692.40x = 2,160,618.80 × 921,154.07 - Step 4: Simplify right side
1,565,692.40x = 1,990,262,785,929.65 - Step 5: Solve for x
x = 1,990,262,785,929.65/1,565,692.40 - Step 6: Final answer
x = 1,271,171.01
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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.