Finding the Fourth Proportional to 1,128,692.32, 1,557,614.40 and 619,442.08
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Solution
The fourth proportional to 1,128,692.32, 1,557,614.40 and 619,442.08 is: 854,840.50
Step by Step Solution
- Step 1: Write the proportion equation
1,128,692.32 : 1,557,614.40 = 619,442.08 : x - Step 2: Convert to fraction form
1,128,692.32/1,557,614.40 = 619,442.08/x - Step 3: Cross multiply
1,128,692.32x = 1,557,614.40 × 619,442.08 - Step 4: Simplify right side
1,128,692.32x = 964,851,903,773.95 - Step 5: Solve for x
x = 964,851,903,773.95/1,128,692.32 - Step 6: Final answer
x = 854,840.50
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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.